!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.io=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){

        module.exports = _dereq_('./lib/');

    },{"./lib/":2}],2:[function(_dereq_,module,exports){

        /**
         * Module dependencies.
         */

        var url = _dereq_('./url');
        var parser = _dereq_('socket.io-parser');
        var Manager = _dereq_('./manager');
        var debug = _dereq_('debug')('socket.io-client');

        /**
         * Module exports.
         */

        module.exports = exports = lookup;

        /**
         * Managers cache.
         */

        var cache = exports.managers = {};

        /**
         * Looks up an existing `Manager` for multiplexing.
         * If the user summons:
         *
         *   `io('http://localhost/a');`
         *   `io('http://localhost/b');`
         *
         * We reuse the existing instance based on same scheme/port/host,
         * and we initialize sockets for each namespace.
         *
         * @api public
         */

        function lookup(uri, opts) {
            if (typeof uri == 'object') {
                opts = uri;
                uri = undefined;
            }

            opts = opts || {};

            var parsed = url(uri);
            var source = parsed.source;
            var id = parsed.id;
            var io;

            if (opts.forceNew || opts['force new connection'] || false === opts.multiplex) {
                debug('ignoring socket cache for %s', source);
                io = Manager(source, opts);
            } else {
                if (!cache[id]) {
                    debug('new io instance for %s', source);
                    cache[id] = Manager(source, opts);
                }
                io = cache[id];
            }

            return io.socket(parsed.path);
        }

        /**
         * Protocol version.
         *
         * @api public
         */

        exports.protocol = parser.protocol;

        /**
         * `connect`.
         *
         * @param {String} uri
         * @api public
         */

        exports.connect = lookup;

        /**
         * Expose constructors for standalone build.
         *
         * @api public
         */

        exports.Manager = _dereq_('./manager');
        exports.Socket = _dereq_('./socket');

    },{"./manager":3,"./socket":5,"./url":6,"debug":10,"socket.io-parser":44}],3:[function(_dereq_,module,exports){

        /**
         * Module dependencies.
         */

        var url = _dereq_('./url');
        var eio = _dereq_('engine.io-client');
        var Socket = _dereq_('./socket');
        var Emitter = _dereq_('component-emitter');
        var parser = _dereq_('socket.io-parser');
        var on = _dereq_('./on');
        var bind = _dereq_('component-bind');
        var object = _dereq_('object-component');
        var debug = _dereq_('debug')('socket.io-client:manager');
        var indexOf = _dereq_('indexof');
        var Backoff = _dereq_('backo2');

        /**
         * Module exports
         */

        module.exports = Manager;

        /**
         * `Manager` constructor.
         *
         * @param {String} engine instance or engine uri/opts
         * @param {Object} options
         * @api public
         */

        function Manager(uri, opts){
            if (!(this instanceof Manager)) return new Manager(uri, opts);
            if (uri && ('object' == typeof uri)) {
                opts = uri;
                uri = undefined;
            }
            opts = opts || {};

            opts.path = opts.path || '/socket.io';
            this.nsps = {};
            this.subs = [];
            this.opts = opts;
            this.reconnection(opts.reconnection !== false);
            this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
            this.reconnectionDelay(opts.reconnectionDelay || 1000);
            this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
            this.randomizationFactor(opts.randomizationFactor || 0.5);
            this.backoff = new Backoff({
                min: this.reconnectionDelay(),
                max: this.reconnectionDelayMax(),
                jitter: this.randomizationFactor()
            });
            this.timeout(null == opts.timeout ? 20000 : opts.timeout);
            this.readyState = 'closed';
            this.uri = uri;
            this.connected = [];
            this.encoding = false;
            this.packetBuffer = [];
            this.encoder = new parser.Encoder();
            this.decoder = new parser.Decoder();
            this.autoConnect = opts.autoConnect !== false;
            if (this.autoConnect) this.open();
        }

        /**
         * Propagate given event to sockets and emit on `this`
         *
         * @api private
         */

        Manager.prototype.emitAll = function() {
            this.emit.apply(this, arguments);
            for (var nsp in this.nsps) {
                this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
            }
        };

        /**
         * Update `socket.id` of all sockets
         *
         * @api private
         */

        Manager.prototype.updateSocketIds = function(){
            for (var nsp in this.nsps) {
                this.nsps[nsp].id = this.engine.id;
            }
        };

        /**
         * Mix in `Emitter`.
         */

        Emitter(Manager.prototype);

        /**
         * Sets the `reconnection` config.
         *
         * @param {Boolean} true/false if it should automatically reconnect
         * @return {Manager} self or value
         * @api public
         */

        Manager.prototype.reconnection = function(v){
            if (!arguments.length) return this._reconnection;
            this._reconnection = !!v;
            return this;
        };

        /**
         * Sets the reconnection attempts config.
         *
         * @param {Number} max reconnection attempts before giving up
         * @return {Manager} self or value
         * @api public
         */

        Manager.prototype.reconnectionAttempts = function(v){
            if (!arguments.length) return this._reconnectionAttempts;
            this._reconnectionAttempts = v;
            return this;
        };

        /**
         * Sets the delay between reconnections.
         *
         * @param {Number} delay
         * @return {Manager} self or value
         * @api public
         */

        Manager.prototype.reconnectionDelay = function(v){
            if (!arguments.length) return this._reconnectionDelay;
            this._reconnectionDelay = v;
            this.backoff && this.backoff.setMin(v);
            return this;
        };

        Manager.prototype.randomizationFactor = function(v){
            if (!arguments.length) return this._randomizationFactor;
            this._randomizationFactor = v;
            this.backoff && this.backoff.setJitter(v);
            return this;
        };

        /**
         * Sets the maximum delay between reconnections.
         *
         * @param {Number} delay
         * @return {Manager} self or value
         * @api public
         */

        Manager.prototype.reconnectionDelayMax = function(v){
            if (!arguments.length) return this._reconnectionDelayMax;
            this._reconnectionDelayMax = v;
            this.backoff && this.backoff.setMax(v);
            return this;
        };

        /**
         * Sets the connection timeout. `false` to disable
         *
         * @return {Manager} self or value
         * @api public
         */

        Manager.prototype.timeout = function(v){
            if (!arguments.length) return this._timeout;
            this._timeout = v;
            return this;
        };

        /**
         * Starts trying to reconnect if reconnection is enabled and we have not
         * started reconnecting yet
         *
         * @api private
         */

        Manager.prototype.maybeReconnectOnOpen = function() {
            // Only try to reconnect if it's the first time we're connecting
            if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
                // keeps reconnection from firing twice for the same reconnection loop
                this.reconnect();
            }
        };


        /**
         * Sets the current transport `socket`.
         *
         * @param {Function} optional, callback
         * @return {Manager} self
         * @api public
         */

        Manager.prototype.open =
            Manager.prototype.connect = function(fn){
                debug('readyState %s', this.readyState);
                if (~this.readyState.indexOf('open')) return this;

                debug('opening %s', this.uri);
                this.engine = eio(this.uri, this.opts);
                var socket = this.engine;
                var self = this;
                this.readyState = 'opening';
                this.skipReconnect = false;

                // emit `open`
                var openSub = on(socket, 'open', function() {
                    self.onopen();
                    fn && fn();
                });

                // emit `connect_error`
                var errorSub = on(socket, 'error', function(data){
                    debug('connect_error');
                    self.cleanup();
                    self.readyState = 'closed';
                    self.emitAll('connect_error', data);
                    if (fn) {
                        var err = new Error('Connection error');
                        err.data = data;
                        fn(err);
                    } else {
                        // Only do this if there is no fn to handle the error
                        self.maybeReconnectOnOpen();
                    }
                });

                // emit `connect_timeout`
                if (false !== this._timeout) {
                    var timeout = this._timeout;
                    debug('connect attempt will timeout after %d', timeout);

                    // set timer
                    var timer = setTimeout(function(){
                        debug('connect attempt timed out after %d', timeout);
                        openSub.destroy();
                        socket.close();
                        socket.emit('error', 'timeout');
                        self.emitAll('connect_timeout', timeout);
                    }, timeout);

                    this.subs.push({
                        destroy: function(){
                            clearTimeout(timer);
                        }
                    });
                }

                this.subs.push(openSub);
                this.subs.push(errorSub);

                return this;
            };

        /**
         * Called upon transport open.
         *
         * @api private
         */

        Manager.prototype.onopen = function(){
            debug('open');

            // clear old subs
            this.cleanup();

            // mark as open
            this.readyState = 'open';
            this.emit('open');

            // add new subs
            var socket = this.engine;
            this.subs.push(on(socket, 'data', bind(this, 'ondata')));
            this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
            this.subs.push(on(socket, 'error', bind(this, 'onerror')));
            this.subs.push(on(socket, 'close', bind(this, 'onclose')));
        };

        /**
         * Called with data.
         *
         * @api private
         */

        Manager.prototype.ondata = function(data){
            this.decoder.add(data);
        };

        /**
         * Called when parser fully decodes a packet.
         *
         * @api private
         */

        Manager.prototype.ondecoded = function(packet) {
            this.emit('packet', packet);
        };

        /**
         * Called upon socket error.
         *
         * @api private
         */

        Manager.prototype.onerror = function(err){
            debug('error', err);
            this.emitAll('error', err);
        };

        /**
         * Creates a new socket for the given `nsp`.
         *
         * @return {Socket}
         * @api public
         */

        Manager.prototype.socket = function(nsp){
            var socket = this.nsps[nsp];
            if (!socket) {
                socket = new Socket(this, nsp);
                this.nsps[nsp] = socket;
                var self = this;
                socket.on('connect', function(){
                    socket.id = self.engine.id;
                    if (!~indexOf(self.connected, socket)) {
                        self.connected.push(socket);
                    }
                });
            }
            return socket;
        };

        /**
         * Called upon a socket close.
         *
         * @param {Socket} socket
         */

        Manager.prototype.destroy = function(socket){
            var index = indexOf(this.connected, socket);
            if (~index) this.connected.splice(index, 1);
            if (this.connected.length) return;

            this.close();
        };

        /**
         * Writes a packet.
         *
         * @param {Object} packet
         * @api private
         */

        Manager.prototype.packet = function(packet){
            debug('writing packet %j', packet);
            var self = this;

            if (!self.encoding) {
                // encode, then write to engine with result
                self.encoding = true;
                this.encoder.encode(packet, function(encodedPackets) {
                    for (var i = 0; i < encodedPackets.length; i++) {
                        self.engine.write(encodedPackets[i]);
                    }
                    self.encoding = false;
                    self.processPacketQueue();
                });
            } else { // add packet to the queue
                self.packetBuffer.push(packet);
            }
        };

        /**
         * If packet buffer is non-empty, begins encoding the
         * next packet in line.
         *
         * @api private
         */

        Manager.prototype.processPacketQueue = function() {
            if (this.packetBuffer.length > 0 && !this.encoding) {
                var pack = this.packetBuffer.shift();
                this.packet(pack);
            }
        };

        /**
         * Clean up transport subscriptions and packet buffer.
         *
         * @api private
         */

        Manager.prototype.cleanup = function(){
            var sub;
            while (sub = this.subs.shift()) sub.destroy();

            this.packetBuffer = [];
            this.encoding = false;

            this.decoder.destroy();
        };

        /**
         * Close the current socket.
         *
         * @api private
         */

        Manager.prototype.close =
            Manager.prototype.disconnect = function(){
                this.skipReconnect = true;
                this.backoff.reset();
                this.readyState = 'closed';
                this.engine && this.engine.close();
            };

        /**
         * Called upon engine close.
         *
         * @api private
         */

        Manager.prototype.onclose = function(reason){
            debug('close');
            this.cleanup();
            this.backoff.reset();
            this.readyState = 'closed';
            this.emit('close', reason);
            if (this._reconnection && !this.skipReconnect) {
                this.reconnect();
            }
        };

        /**
         * Attempt a reconnection.
         *
         * @api private
         */

        Manager.prototype.reconnect = function(){
            if (this.reconnecting || this.skipReconnect) return this;

            var self = this;

            if (this.backoff.attempts >= this._reconnectionAttempts) {
                debug('reconnect failed');
                this.backoff.reset();
                this.emitAll('reconnect_failed');
                this.reconnecting = false;
            } else {
                var delay = this.backoff.duration();
                debug('will wait %dms before reconnect attempt', delay);

                this.reconnecting = true;
                var timer = setTimeout(function(){
                    if (self.skipReconnect) return;

                    debug('attempting reconnect');
                    self.emitAll('reconnect_attempt', self.backoff.attempts);
                    self.emitAll('reconnecting', self.backoff.attempts);

                    // check again for the case socket closed in above events
                    if (self.skipReconnect) return;

                    self.open(function(err){
                        if (err) {
                            debug('reconnect attempt error');
                            self.reconnecting = false;
                            self.reconnect();
                            self.emitAll('reconnect_error', err.data);
                        } else {
                            debug('reconnect success');
                            self.onreconnect();
                        }
                    });
                }, delay);

                this.subs.push({
                    destroy: function(){
                        clearTimeout(timer);
                    }
                });
            }
        };

        /**
         * Called upon successful reconnect.
         *
         * @api private
         */

        Manager.prototype.onreconnect = function(){
            var attempt = this.backoff.attempts;
            this.reconnecting = false;
            this.backoff.reset();
            this.updateSocketIds();
            this.emitAll('reconnect', attempt);
        };

    },{"./on":4,"./socket":5,"./url":6,"backo2":7,"component-bind":8,"component-emitter":9,"debug":10,"engine.io-client":11,"indexof":40,"object-component":41,"socket.io-parser":44}],4:[function(_dereq_,module,exports){

        /**
         * Module exports.
         */

        module.exports = on;

        /**
         * Helper for subscriptions.
         *
         * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
         * @param {String} event name
         * @param {Function} callback
         * @api public
         */

        function on(obj, ev, fn) {
            obj.on(ev, fn);
            return {
                destroy: function(){
                    obj.removeListener(ev, fn);
                }
            };
        }

    },{}],5:[function(_dereq_,module,exports){

        /**
         * Module dependencies.
         */

        var parser = _dereq_('socket.io-parser');
        var Emitter = _dereq_('component-emitter');
        var toArray = _dereq_('to-array');
        var on = _dereq_('./on');
        var bind = _dereq_('component-bind');
        var debug = _dereq_('debug')('socket.io-client:socket');
        var hasBin = _dereq_('has-binary');

        /**
         * Module exports.
         */

        module.exports = exports = Socket;

        /**
         * Internal events (blacklisted).
         * These events can't be emitted by the user.
         *
         * @api private
         */

        var events = {
            connect: 1,
            connect_error: 1,
            connect_timeout: 1,
            disconnect: 1,
            error: 1,
            reconnect: 1,
            reconnect_attempt: 1,
            reconnect_failed: 1,
            reconnect_error: 1,
            reconnecting: 1
        };

        /**
         * Shortcut to `Emitter#emit`.
         */

        var emit = Emitter.prototype.emit;

        /**
         * `Socket` constructor.
         *
         * @api public
         */

        function Socket(io, nsp){
            this.io = io;
            this.nsp = nsp;
            this.json = this; // compat
            this.ids = 0;
            this.acks = {};
            if (this.io.autoConnect) this.open();
            this.receiveBuffer = [];
            this.sendBuffer = [];
            this.connected = false;
            this.disconnected = true;
        }

        /**
         * Mix in `Emitter`.
         */

        Emitter(Socket.prototype);

        /**
         * Subscribe to open, close and packet events
         *
         * @api private
         */

        Socket.prototype.subEvents = function() {
            if (this.subs) return;

            var io = this.io;
            this.subs = [
                on(io, 'open', bind(this, 'onopen')),
                on(io, 'packet', bind(this, 'onpacket')),
                on(io, 'close', bind(this, 'onclose'))
            ];
        };

        /**
         * "Opens" the socket.
         *
         * @api public
         */

        Socket.prototype.open =
            Socket.prototype.connect = function(){
                if (this.connected) return this;

                this.subEvents();
                this.io.open(); // ensure open
                if ('open' == this.io.readyState) this.onopen();
                return this;
            };

        /**
         * Sends a `message` event.
         *
         * @return {Socket} self
         * @api public
         */

        Socket.prototype.send = function(){
            var args = toArray(arguments);
            args.unshift('message');
            this.emit.apply(this, args);
            return this;
        };

        /**
         * Override `emit`.
         * If the event is in `events`, it's emitted normally.
         *
         * @param {String} event name
         * @return {Socket} self
         * @api public
         */

        Socket.prototype.emit = function(ev){
            if (events.hasOwnProperty(ev)) {
                emit.apply(this, arguments);
                return this;
            }

            var args = toArray(arguments);
            var parserType = parser.EVENT; // default
            if (hasBin(args)) { parserType = parser.BINARY_EVENT; } // binary
            var packet = { type: parserType, data: args };

            // event ack callback
            if ('function' == typeof args[args.length - 1]) {
                debug('emitting packet with ack id %d', this.ids);
                this.acks[this.ids] = args.pop();
                packet.id = this.ids++;
            }

            if (this.connected) {
                this.packet(packet);
            } else {
                this.sendBuffer.push(packet);
            }

            return this;
        };

        /**
         * Sends a packet.
         *
         * @param {Object} packet
         * @api private
         */

        Socket.prototype.packet = function(packet){
            packet.nsp = this.nsp;
            this.io.packet(packet);
        };

        /**
         * Called upon engine `open`.
         *
         * @api private
         */

        Socket.prototype.onopen = function(){
            debug('transport is open - connecting');

            // write connect packet if necessary
            if ('/' != this.nsp) {
                this.packet({ type: parser.CONNECT });
            }
        };

        /**
         * Called upon engine `close`.
         *
         * @param {String} reason
         * @api private
         */

        Socket.prototype.onclose = function(reason){
            debug('close (%s)', reason);
            this.connected = false;
            this.disconnected = true;
            delete this.id;
            this.emit('disconnect', reason);
        };

        /**
         * Called with socket packet.
         *
         * @param {Object} packet
         * @api private
         */

        Socket.prototype.onpacket = function(packet){
            if (packet.nsp != this.nsp) return;

            switch (packet.type) {
                case parser.CONNECT:
                    this.onconnect();
                    break;

                case parser.EVENT:
                    this.onevent(packet);
                    break;

                case parser.BINARY_EVENT:
                    this.onevent(packet);
                    break;

                case parser.ACK:
                    this.onack(packet);
                    break;

                case parser.BINARY_ACK:
                    this.onack(packet);
                    break;

                case parser.DISCONNECT:
                    this.ondisconnect();
                    break;

                case parser.ERROR:
                    this.emit('error', packet.data);
                    break;
            }
        };

        /**
         * Called upon a server event.
         *
         * @param {Object} packet
         * @api private
         */

        Socket.prototype.onevent = function(packet){
            var args = packet.data || [];
            debug('emitting event %j', args);

            if (null != packet.id) {
                debug('attaching ack callback to event');
                args.push(this.ack(packet.id));
            }

            if (this.connected) {
                emit.apply(this, args);
            } else {
                this.receiveBuffer.push(args);
            }
        };

        /**
         * Produces an ack callback to emit with an event.
         *
         * @api private
         */

        Socket.prototype.ack = function(id){
            var self = this;
            var sent = false;
            return function(){
                // prevent double callbacks
                if (sent) return;
                sent = true;
                var args = toArray(arguments);
                debug('sending ack %j', args);

                var type = hasBin(args) ? parser.BINARY_ACK : parser.ACK;
                self.packet({
                    type: type,
                    id: id,
                    data: args
                });
            };
        };

        /**
         * Called upon a server acknowlegement.
         *
         * @param {Object} packet
         * @api private
         */

        Socket.prototype.onack = function(packet){
            debug('calling ack %s with %j', packet.id, packet.data);
            var fn = this.acks[packet.id];
            fn.apply(this, packet.data);
            delete this.acks[packet.id];
        };

        /**
         * Called upon server connect.
         *
         * @api private
         */

        Socket.prototype.onconnect = function(){
            this.connected = true;
            this.disconnected = false;
            this.emit('connect');
            this.emitBuffered();
        };

        /**
         * Emit buffered events (received and emitted).
         *
         * @api private
         */

        Socket.prototype.emitBuffered = function(){
            var i;
            for (i = 0; i < this.receiveBuffer.length; i++) {
                emit.apply(this, this.receiveBuffer[i]);
            }
            this.receiveBuffer = [];

            for (i = 0; i < this.sendBuffer.length; i++) {
                this.packet(this.sendBuffer[i]);
            }
            this.sendBuffer = [];
        };

        /**
         * Called upon server disconnect.
         *
         * @api private
         */

        Socket.prototype.ondisconnect = function(){
            debug('server disconnect (%s)', this.nsp);
            this.destroy();
            this.onclose('io server disconnect');
        };

        /**
         * Called upon forced client/server side disconnections,
         * this method ensures the manager stops tracking us and
         * that reconnections don't get triggered for this.
         *
         * @api private.
         */

        Socket.prototype.destroy = function(){
            if (this.subs) {
                // clean subscriptions to avoid reconnections
                for (var i = 0; i < this.subs.length; i++) {
                    this.subs[i].destroy();
                }
                this.subs = null;
            }

            this.io.destroy(this);
        };

        /**
         * Disconnects the socket manually.
         *
         * @return {Socket} self
         * @api public
         */

        Socket.prototype.close =
            Socket.prototype.disconnect = function(){
                if (this.connected) {
                    debug('performing disconnect (%s)', this.nsp);
                    this.packet({ type: parser.DISCONNECT });
                }

                // remove socket from pool
                this.destroy();

                if (this.connected) {
                    // fire events
                    this.onclose('io client disconnect');
                }
                return this;
            };

    },{"./on":4,"component-bind":8,"component-emitter":9,"debug":10,"has-binary":36,"socket.io-parser":44,"to-array":48}],6:[function(_dereq_,module,exports){
        (function (global){

            /**
             * Module dependencies.
             */

            var parseuri = _dereq_('parseuri');
            var debug = _dereq_('debug')('socket.io-client:url');

            /**
             * Module exports.
             */

            module.exports = url;

            /**
             * URL parser.
             *
             * @param {String} url
             * @param {Object} An object meant to mimic window.location.
             *                 Defaults to window.location.
             * @api public
             */

            function url(uri, loc){
                var obj = uri;

                // default to window.location
                var loc = loc || global.location;
                if (null == uri) uri = loc.protocol + '//' + loc.host;

                // relative path support
                if ('string' == typeof uri) {
                    if ('/' == uri.charAt(0)) {
                        if ('/' == uri.charAt(1)) {
                            uri = loc.protocol + uri;
                        } else {
                            uri = loc.hostname + uri;
                        }
                    }

                    if (!/^(https?|wss?):\/\//.test(uri)) {
                        debug('protocol-less url %s', uri);
                        if ('undefined' != typeof loc) {
                            uri = loc.protocol + '//' + uri;
                        } else {
                            uri = 'https://' + uri;
                        }
                    }

                    // parse
                    debug('parse %s', uri);
                    obj = parseuri(uri);
                }

                // make sure we treat `localhost:80` and `localhost` equally
                if (!obj.port) {
                    if (/^(http|ws)$/.test(obj.protocol)) {
                        obj.port = '80';
                    }
                    else if (/^(http|ws)s$/.test(obj.protocol)) {
                        obj.port = '443';
                    }
                }

                obj.path = obj.path || '/';

                // define unique id
                obj.id = obj.protocol + '://' + obj.host + ':' + obj.port;
                // define href
                obj.href = obj.protocol + '://' + obj.host + (loc && loc.port == obj.port ? '' : (':' + obj.port));

                return obj;
            }

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"debug":10,"parseuri":42}],7:[function(_dereq_,module,exports){

        /**
         * Expose `Backoff`.
         */

        module.exports = Backoff;

        /**
         * Initialize backoff timer with `opts`.
         *
         * - `min` initial timeout in milliseconds [100]
         * - `max` max timeout [10000]
         * - `jitter` [0]
         * - `factor` [2]
         *
         * @param {Object} opts
         * @api public
         */

        function Backoff(opts) {
            opts = opts || {};
            this.ms = opts.min || 100;
            this.max = opts.max || 10000;
            this.factor = opts.factor || 2;
            this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
            this.attempts = 0;
        }

        /**
         * Return the backoff duration.
         *
         * @return {Number}
         * @api public
         */

        Backoff.prototype.duration = function(){
            var ms = this.ms * Math.pow(this.factor, this.attempts++);
            if (this.jitter) {
                var rand =  Math.random();
                var deviation = Math.floor(rand * this.jitter * ms);
                ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
            }
            return Math.min(ms, this.max) | 0;
        };

        /**
         * Reset the number of attempts.
         *
         * @api public
         */

        Backoff.prototype.reset = function(){
            this.attempts = 0;
        };

        /**
         * Set the minimum duration
         *
         * @api public
         */

        Backoff.prototype.setMin = function(min){
            this.ms = min;
        };

        /**
         * Set the maximum duration
         *
         * @api public
         */

        Backoff.prototype.setMax = function(max){
            this.max = max;
        };

        /**
         * Set the jitter
         *
         * @api public
         */

        Backoff.prototype.setJitter = function(jitter){
            this.jitter = jitter;
        };


    },{}],8:[function(_dereq_,module,exports){
        /**
         * Slice reference.
         */

        var slice = [].slice;

        /**
         * Bind `obj` to `fn`.
         *
         * @param {Object} obj
         * @param {Function|String} fn or string
         * @return {Function}
         * @api public
         */

        module.exports = function(obj, fn){
            if ('string' == typeof fn) fn = obj[fn];
            if ('function' != typeof fn) throw new Error('bind() requires a function');
            var args = slice.call(arguments, 2);
            return function(){
                return fn.apply(obj, args.concat(slice.call(arguments)));
            }
        };

    },{}],9:[function(_dereq_,module,exports){

        /**
         * Expose `Emitter`.
         */

        module.exports = Emitter;

        /**
         * Initialize a new `Emitter`.
         *
         * @api public
         */

        function Emitter(obj) {
            if (obj) return mixin(obj);
        };

        /**
         * Mixin the emitter properties.
         *
         * @param {Object} obj
         * @return {Object}
         * @api private
         */

        function mixin(obj) {
            for (var key in Emitter.prototype) {
                obj[key] = Emitter.prototype[key];
            }
            return obj;
        }

        /**
         * Listen on the given `event` with `fn`.
         *
         * @param {String} event
         * @param {Function} fn
         * @return {Emitter}
         * @api public
         */

        Emitter.prototype.on =
            Emitter.prototype.addEventListener = function(event, fn){
                this._callbacks = this._callbacks || {};
                (this._callbacks[event] = this._callbacks[event] || [])
                    .push(fn);
                return this;
            };

        /**
         * Adds an `event` listener that will be invoked a single
         * time then automatically removed.
         *
         * @param {String} event
         * @param {Function} fn
         * @return {Emitter}
         * @api public
         */

        Emitter.prototype.once = function(event, fn){
            var self = this;
            this._callbacks = this._callbacks || {};

            function on() {
                self.off(event, on);
                fn.apply(this, arguments);
            }

            on.fn = fn;
            this.on(event, on);
            return this;
        };

        /**
         * Remove the given callback for `event` or all
         * registered callbacks.
         *
         * @param {String} event
         * @param {Function} fn
         * @return {Emitter}
         * @api public
         */

        Emitter.prototype.off =
            Emitter.prototype.removeListener =
                Emitter.prototype.removeAllListeners =
                    Emitter.prototype.removeEventListener = function(event, fn){
                        this._callbacks = this._callbacks || {};

                        // all
                        if (0 == arguments.length) {
                            this._callbacks = {};
                            return this;
                        }

                        // specific event
                        var callbacks = this._callbacks[event];
                        if (!callbacks) return this;

                        // remove all handlers
                        if (1 == arguments.length) {
                            delete this._callbacks[event];
                            return this;
                        }

                        // remove specific handler
                        var cb;
                        for (var i = 0; i < callbacks.length; i++) {
                            cb = callbacks[i];
                            if (cb === fn || cb.fn === fn) {
                                callbacks.splice(i, 1);
                                break;
                            }
                        }
                        return this;
                    };

        /**
         * Emit `event` with the given args.
         *
         * @param {String} event
         * @param {Mixed} ...
         * @return {Emitter}
         */

        Emitter.prototype.emit = function(event){
            this._callbacks = this._callbacks || {};
            var args = [].slice.call(arguments, 1)
                , callbacks = this._callbacks[event];

            if (callbacks) {
                callbacks = callbacks.slice(0);
                for (var i = 0, len = callbacks.length; i < len; ++i) {
                    callbacks[i].apply(this, args);
                }
            }

            return this;
        };

        /**
         * Return array of callbacks for `event`.
         *
         * @param {String} event
         * @return {Array}
         * @api public
         */

        Emitter.prototype.listeners = function(event){
            this._callbacks = this._callbacks || {};
            return this._callbacks[event] || [];
        };

        /**
         * Check if this emitter has `event` handlers.
         *
         * @param {String} event
         * @return {Boolean}
         * @api public
         */

        Emitter.prototype.hasListeners = function(event){
            return !! this.listeners(event).length;
        };

    },{}],10:[function(_dereq_,module,exports){

        /**
         * Expose `debug()` as the module.
         */

        module.exports = debug;

        /**
         * Create a debugger with the given `name`.
         *
         * @param {String} name
         * @return {Type}
         * @api public
         */

        function debug(name) {
            if (!debug.enabled(name)) return function(){};

            return function(fmt){
                fmt = coerce(fmt);

                var curr = new Date;
                var ms = curr - (debug[name] || curr);
                debug[name] = curr;

                fmt = name
                    + ' '
                    + fmt
                    + ' +' + debug.humanize(ms);

                // This hackery is required for IE8
                // where `console.log` doesn't have 'apply'
                window.console
                && console.log
                && Function.prototype.apply.call(console.log, console, arguments);
            }
        }

        /**
         * The currently active debug mode names.
         */

        debug.names = [];
        debug.skips = [];

        /**
         * Enables a debug mode by name. This can include modes
         * separated by a colon and wildcards.
         *
         * @param {String} name
         * @api public
         */

        debug.enable = function(name) {
            try {
                localStorage.debug = name;
            } catch(e){}

            var split = (name || '').split(/[\s,]+/)
                , len = split.length;

            for (var i = 0; i < len; i++) {
                name = split[i].replace('*', '.*?');
                if (name[0] === '-') {
                    debug.skips.push(new RegExp('^' + name.substr(1) + '$'));
                }
                else {
                    debug.names.push(new RegExp('^' + name + '$'));
                }
            }
        };

        /**
         * Disable debug output.
         *
         * @api public
         */

        debug.disable = function(){
            debug.enable('');
        };

        /**
         * Humanize the given `ms`.
         *
         * @param {Number} m
         * @return {String}
         * @api private
         */

        debug.humanize = function(ms) {
            var sec = 1000
                , min = 60 * 1000
                , hour = 60 * min;

            if (ms >= hour) return (ms / hour).toFixed(1) + 'h';
            if (ms >= min) return (ms / min).toFixed(1) + 'm';
            if (ms >= sec) return (ms / sec | 0) + 's';
            return ms + 'ms';
        };

        /**
         * Returns true if the given mode name is enabled, false otherwise.
         *
         * @param {String} name
         * @return {Boolean}
         * @api public
         */

        debug.enabled = function(name) {
            for (var i = 0, len = debug.skips.length; i < len; i++) {
                if (debug.skips[i].test(name)) {
                    return false;
                }
            }
            for (var i = 0, len = debug.names.length; i < len; i++) {
                if (debug.names[i].test(name)) {
                    return true;
                }
            }
            return false;
        };

        /**
         * Coerce `val`.
         */

        function coerce(val) {
            if (val instanceof Error) return val.stack || val.message;
            return val;
        }

// persist

        try {
            if (window.localStorage) debug.enable(localStorage.debug);
        } catch(e){}

    },{}],11:[function(_dereq_,module,exports){

        module.exports =  _dereq_('./lib/');

    },{"./lib/":12}],12:[function(_dereq_,module,exports){

        module.exports = _dereq_('./socket');

        /**
         * Exports parser
         *
         * @api public
         *
         */
        module.exports.parser = _dereq_('engine.io-parser');

    },{"./socket":13,"engine.io-parser":25}],13:[function(_dereq_,module,exports){
        (function (global){
            /**
             * Module dependencies.
             */

            var transports = _dereq_('./transports');
            var Emitter = _dereq_('component-emitter');
            var debug = _dereq_('debug')('engine.io-client:socket');
            var index = _dereq_('indexof');
            var parser = _dereq_('engine.io-parser');
            var parseuri = _dereq_('parseuri');
            var parsejson = _dereq_('parsejson');
            var parseqs = _dereq_('parseqs');

            /**
             * Module exports.
             */

            module.exports = Socket;

            /**
             * Noop function.
             *
             * @api private
             */

            function noop(){}

            /**
             * Socket constructor.
             *
             * @param {String|Object} uri or options
             * @param {Object} options
             * @api public
             */

            function Socket(uri, opts){
                if (!(this instanceof Socket)) return new Socket(uri, opts);

                opts = opts || {};

                if (uri && 'object' == typeof uri) {
                    opts = uri;
                    uri = null;
                }

                if (uri) {
                    uri = parseuri(uri);
                    opts.host = uri.host;
                    opts.secure = uri.protocol == 'https' || uri.protocol == 'wss';
                    opts.port = uri.port;
                    if (uri.query) opts.query = uri.query;
                }

                this.secure = null != opts.secure ? opts.secure :
                    (global.location && 'https:' == location.protocol);

                if (opts.host) {
                    var pieces = opts.host.split(':');
                    opts.hostname = pieces.shift();
                    if (pieces.length) {
                        opts.port = pieces.pop();
                    } else if (!opts.port) {
                        // if no port is specified manually, use the protocol default
                        opts.port = this.secure ? '443' : '80';
                    }
                }

                this.agent = opts.agent || false;
                this.hostname = opts.hostname ||
                    (global.location ? location.hostname : 'localhost');
                this.port = opts.port || (global.location && location.port ?
                    location.port :
                    (this.secure ? 443 : 80));
                this.query = opts.query || {};
                if ('string' == typeof this.query) this.query = parseqs.decode(this.query);
                this.upgrade = false !== opts.upgrade;
                this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
                this.forceJSONP = !!opts.forceJSONP;
                this.jsonp = false !== opts.jsonp;
                this.forceBase64 = !!opts.forceBase64;
                this.enablesXDR = !!opts.enablesXDR;
                this.timestampParam = opts.timestampParam || 't';
                this.timestampRequests = opts.timestampRequests;
                this.transports = opts.transports || ['polling', 'websocket'];
                this.readyState = '';
                this.writeBuffer = [];
                this.callbackBuffer = [];
                this.policyPort = opts.policyPort || 843;
                this.rememberUpgrade = opts.rememberUpgrade || false;
                this.binaryType = null;
                this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;

                // SSL options for Node.js client
                this.pfx = opts.pfx || null;
                this.key = opts.key || null;
                this.passphrase = opts.passphrase || null;
                this.cert = opts.cert || null;
                this.ca = opts.ca || null;
                this.ciphers = opts.ciphers || null;
                this.rejectUnauthorized = opts.rejectUnauthorized || null;

                this.open();
            }

            Socket.priorWebsocketSuccess = false;

            /**
             * Mix in `Emitter`.
             */

            Emitter(Socket.prototype);

            /**
             * Protocol version.
             *
             * @api public
             */

            Socket.protocol = parser.protocol; // this is an int

            /**
             * Expose deps for legacy compatibility
             * and standalone browser access.
             */

            Socket.Socket = Socket;
            Socket.Transport = _dereq_('./transport');
            Socket.transports = _dereq_('./transports');
            Socket.parser = _dereq_('engine.io-parser');

            /**
             * Creates transport of the given type.
             *
             * @param {String} transport name
             * @return {Transport}
             * @api private
             */

            Socket.prototype.createTransport = function (name) {
                debug('creating transport "%s"', name);
                var query = clone(this.query);

                // append engine.io protocol identifier
                query.EIO = parser.protocol;

                // transport name
                query.transport = name;

                // session id if we already have one
                if (this.id) query.sid = this.id;

                var transport = new transports[name]({
                    agent: this.agent,
                    hostname: this.hostname,
                    port: this.port,
                    secure: this.secure,
                    path: this.path,
                    query: query,
                    forceJSONP: this.forceJSONP,
                    jsonp: this.jsonp,
                    forceBase64: this.forceBase64,
                    enablesXDR: this.enablesXDR,
                    timestampRequests: this.timestampRequests,
                    timestampParam: this.timestampParam,
                    policyPort: this.policyPort,
                    socket: this,
                    pfx: this.pfx,
                    key: this.key,
                    passphrase: this.passphrase,
                    cert: this.cert,
                    ca: this.ca,
                    ciphers: this.ciphers,
                    rejectUnauthorized: this.rejectUnauthorized
                });

                return transport;
            };

            function clone (obj) {
                var o = {};
                for (var i in obj) {
                    if (obj.hasOwnProperty(i)) {
                        o[i] = obj[i];
                    }
                }
                return o;
            }

            /**
             * Initializes transport to use and starts probe.
             *
             * @api private
             */
            Socket.prototype.open = function () {
                var transport;
                if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') != -1) {
                    transport = 'websocket';
                } else if (0 == this.transports.length) {
                    // Emit error on next tick so it can be listened to
                    var self = this;
                    setTimeout(function() {
                        self.emit('error', 'No transports available');
                    }, 0);
                    return;
                } else {
                    transport = this.transports[0];
                }
                this.readyState = 'opening';

                // Retry with the next transport if the transport is disabled (jsonp: false)
                var transport;
                try {
                    transport = this.createTransport(transport);
                } catch (e) {
                    this.transports.shift();
                    this.open();
                    return;
                }

                transport.open();
                this.setTransport(transport);
            };

            /**
             * Sets the current transport. Disables the existing one (if any).
             *
             * @api private
             */

            Socket.prototype.setTransport = function(transport){
                debug('setting transport %s', transport.name);
                var self = this;

                if (this.transport) {
                    debug('clearing existing transport %s', this.transport.name);
                    this.transport.removeAllListeners();
                }

                // set up transport
                this.transport = transport;

                // set up transport listeners
                transport
                    .on('drain', function(){
                        self.onDrain();
                    })
                    .on('packet', function(packet){
                        self.onPacket(packet);
                    })
                    .on('error', function(e){
                        self.onError(e);
                    })
                    .on('close', function(){
                        self.onClose('transport close');
                    });
            };

            /**
             * Probes a transport.
             *
             * @param {String} transport name
             * @api private
             */

            Socket.prototype.probe = function (name) {
                debug('probing transport "%s"', name);
                var transport = this.createTransport(name, { probe: 1 })
                    , failed = false
                    , self = this;

                Socket.priorWebsocketSuccess = false;

                function onTransportOpen(){
                    if (self.onlyBinaryUpgrades) {
                        var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
                        failed = failed || upgradeLosesBinary;
                    }
                    if (failed) return;

                    debug('probe transport "%s" opened', name);
                    transport.send([{ type: 'ping', data: 'probe' }]);
                    transport.once('packet', function (msg) {
                        if (failed) return;
                        if ('pong' == msg.type && 'probe' == msg.data) {
                            debug('probe transport "%s" pong', name);
                            self.upgrading = true;
                            self.emit('upgrading', transport);
                            if (!transport) return;
                            Socket.priorWebsocketSuccess = 'websocket' == transport.name;

                            debug('pausing current transport "%s"', self.transport.name);
                            self.transport.pause(function () {
                                if (failed) return;
                                if ('closed' == self.readyState) return;
                                debug('changing transport and sending upgrade packet');

                                cleanup();

                                self.setTransport(transport);
                                transport.send([{ type: 'upgrade' }]);
                                self.emit('upgrade', transport);
                                transport = null;
                                self.upgrading = false;
                                self.flush();
                            });
                        } else {
                            debug('probe transport "%s" failed', name);
                            var err = new Error('probe error');
                            err.transport = transport.name;
                            self.emit('upgradeError', err);
                        }
                    });
                }

                function freezeTransport() {
                    if (failed) return;

                    // Any callback called by transport should be ignored since now
                    failed = true;

                    cleanup();

                    transport.close();
                    transport = null;
                }

                //Handle any error that happens while probing
                function onerror(err) {
                    var error = new Error('probe error: ' + err);
                    error.transport = transport.name;

                    freezeTransport();

                    debug('probe transport "%s" failed because of error: %s', name, err);

                    self.emit('upgradeError', error);
                }

                function onTransportClose(){
                    onerror("transport closed");
                }

                //When the socket is closed while we're probing
                function onclose(){
                    onerror("socket closed");
                }

                //When the socket is upgraded while we're probing
                function onupgrade(to){
                    if (transport && to.name != transport.name) {
                        debug('"%s" works - aborting "%s"', to.name, transport.name);
                        freezeTransport();
                    }
                }

                //Remove all listeners on the transport and on self
                function cleanup(){
                    transport.removeListener('open', onTransportOpen);
                    transport.removeListener('error', onerror);
                    transport.removeListener('close', onTransportClose);
                    self.removeListener('close', onclose);
                    self.removeListener('upgrading', onupgrade);
                }

                transport.once('open', onTransportOpen);
                transport.once('error', onerror);
                transport.once('close', onTransportClose);

                this.once('close', onclose);
                this.once('upgrading', onupgrade);

                transport.open();

            };

            /**
             * Called when connection is deemed open.
             *
             * @api public
             */

            Socket.prototype.onOpen = function () {
                debug('socket open');
                this.readyState = 'open';
                Socket.priorWebsocketSuccess = 'websocket' == this.transport.name;
                this.emit('open');
                this.flush();

                // we check for `readyState` in case an `open`
                // listener already closed the socket
                if ('open' == this.readyState && this.upgrade && this.transport.pause) {
                    debug('starting upgrade probes');
                    for (var i = 0, l = this.upgrades.length; i < l; i++) {
                        this.probe(this.upgrades[i]);
                    }
                }
            };

            /**
             * Handles a packet.
             *
             * @api private
             */

            Socket.prototype.onPacket = function (packet) {
                if ('opening' == this.readyState || 'open' == this.readyState) {
                    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);

                    this.emit('packet', packet);

                    // Socket is live - any packet counts
                    this.emit('heartbeat');

                    switch (packet.type) {
                        case 'open':
                            this.onHandshake(parsejson(packet.data));
                            break;

                        case 'pong':
                            this.setPing();
                            break;

                        case 'error':
                            var err = new Error('server error');
                            err.code = packet.data;
                            this.emit('error', err);
                            break;

                        case 'message':
                            this.emit('data', packet.data);
                            this.emit('message', packet.data);
                            break;
                    }
                } else {
                    debug('packet received with socket readyState "%s"', this.readyState);
                }
            };

            /**
             * Called upon handshake completion.
             *
             * @param {Object} handshake obj
             * @api private
             */

            Socket.prototype.onHandshake = function (data) {
                this.emit('handshake', data);
                this.id = data.sid;
                this.transport.query.sid = data.sid;
                this.upgrades = this.filterUpgrades(data.upgrades);
                this.pingInterval = data.pingInterval;
                this.pingTimeout = data.pingTimeout;
                this.onOpen();
                // In case open handler closes socket
                if  ('closed' == this.readyState) return;
                this.setPing();

                // Prolong liveness of socket on heartbeat
                this.removeListener('heartbeat', this.onHeartbeat);
                this.on('heartbeat', this.onHeartbeat);
            };

            /**
             * Resets ping timeout.
             *
             * @api private
             */

            Socket.prototype.onHeartbeat = function (timeout) {
                clearTimeout(this.pingTimeoutTimer);
                var self = this;
                self.pingTimeoutTimer = setTimeout(function () {
                    if ('closed' == self.readyState) return;
                    self.onClose('ping timeout');
                }, timeout || (self.pingInterval + self.pingTimeout));
            };

            /**
             * Pings server every `this.pingInterval` and expects response
             * within `this.pingTimeout` or closes connection.
             *
             * @api private
             */

            Socket.prototype.setPing = function () {
                var self = this;
                clearTimeout(self.pingIntervalTimer);
                self.pingIntervalTimer = setTimeout(function () {
                    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
                    self.ping();
                    self.onHeartbeat(self.pingTimeout);
                }, self.pingInterval);
            };

            /**
             * Sends a ping packet.
             *
             * @api public
             */

            Socket.prototype.ping = function () {
                this.sendPacket('ping');
            };

            /**
             * Called on `drain` event
             *
             * @api private
             */

            Socket.prototype.onDrain = function() {
                for (var i = 0; i < this.prevBufferLen; i++) {
                    if (this.callbackBuffer[i]) {
                        this.callbackBuffer[i]();
                    }
                }

                this.writeBuffer.splice(0, this.prevBufferLen);
                this.callbackBuffer.splice(0, this.prevBufferLen);

                // setting prevBufferLen = 0 is very important
                // for example, when upgrading, upgrade packet is sent over,
                // and a nonzero prevBufferLen could cause problems on `drain`
                this.prevBufferLen = 0;

                if (this.writeBuffer.length == 0) {
                    this.emit('drain');
                } else {
                    this.flush();
                }
            };

            /**
             * Flush write buffers.
             *
             * @api private
             */

            Socket.prototype.flush = function () {
                if ('closed' != this.readyState && this.transport.writable &&
                    !this.upgrading && this.writeBuffer.length) {
                    debug('flushing %d packets in socket', this.writeBuffer.length);
                    this.transport.send(this.writeBuffer);
                    // keep track of current length of writeBuffer
                    // splice writeBuffer and callbackBuffer on `drain`
                    this.prevBufferLen = this.writeBuffer.length;
                    this.emit('flush');
                }
            };

            /**
             * Sends a message.
             *
             * @param {String} message.
             * @param {Function} callback function.
             * @return {Socket} for chaining.
             * @api public
             */

            Socket.prototype.write =
                Socket.prototype.send = function (msg, fn) {
                    this.sendPacket('message', msg, fn);
                    return this;
                };

            /**
             * Sends a packet.
             *
             * @param {String} packet type.
             * @param {String} data.
             * @param {Function} callback function.
             * @api private
             */

            Socket.prototype.sendPacket = function (type, data, fn) {
                if ('closing' == this.readyState || 'closed' == this.readyState) {
                    return;
                }

                var packet = { type: type, data: data };
                this.emit('packetCreate', packet);
                this.writeBuffer.push(packet);
                this.callbackBuffer.push(fn);
                this.flush();
            };

            /**
             * Closes the connection.
             *
             * @api private
             */

            Socket.prototype.close = function () {
                if ('opening' == this.readyState || 'open' == this.readyState) {
                    this.readyState = 'closing';

                    var self = this;

                    function close() {
                        self.onClose('forced close');
                        debug('socket closing - telling transport to close');
                        self.transport.close();
                    }

                    function cleanupAndClose() {
                        self.removeListener('upgrade', cleanupAndClose);
                        self.removeListener('upgradeError', cleanupAndClose);
                        close();
                    }

                    function waitForUpgrade() {
                        // wait for upgrade to finish since we can't send packets while pausing a transport
                        self.once('upgrade', cleanupAndClose);
                        self.once('upgradeError', cleanupAndClose);
                    }

                    if (this.writeBuffer.length) {
                        this.once('drain', function() {
                            if (this.upgrading) {
                                waitForUpgrade();
                            } else {
                                close();
                            }
                        });
                    } else if (this.upgrading) {
                        waitForUpgrade();
                    } else {
                        close();
                    }
                }

                return this;
            };

            /**
             * Called upon transport error
             *
             * @api private
             */

            Socket.prototype.onError = function (err) {
                debug('socket error %j', err);
                Socket.priorWebsocketSuccess = false;
                this.emit('error', err);
                this.onClose('transport error', err);
            };

            /**
             * Called upon transport close.
             *
             * @api private
             */

            Socket.prototype.onClose = function (reason, desc) {
                if ('opening' == this.readyState || 'open' == this.readyState || 'closing' == this.readyState) {
                    debug('socket close with reason: "%s"', reason);
                    var self = this;

                    // clear timers
                    clearTimeout(this.pingIntervalTimer);
                    clearTimeout(this.pingTimeoutTimer);

                    // clean buffers in next tick, so developers can still
                    // grab the buffers on `close` event
                    setTimeout(function() {
                        self.writeBuffer = [];
                        self.callbackBuffer = [];
                        self.prevBufferLen = 0;
                    }, 0);

                    // stop event from firing again for transport
                    this.transport.removeAllListeners('close');

                    // ensure transport won't stay open
                    this.transport.close();

                    // ignore further transport communication
                    this.transport.removeAllListeners();

                    // set ready state
                    this.readyState = 'closed';

                    // clear session id
                    this.id = null;

                    // emit close event
                    this.emit('close', reason, desc);
                }
            };

            /**
             * Filters upgrades, returning only those matching client transports.
             *
             * @param {Array} server upgrades
             * @api private
             *
             */

            Socket.prototype.filterUpgrades = function (upgrades) {
                var filteredUpgrades = [];
                for (var i = 0, j = upgrades.length; i<j; i++) {
                    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
                }
                return filteredUpgrades;
            };

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"./transport":14,"./transports":15,"component-emitter":9,"debug":22,"engine.io-parser":25,"indexof":40,"parsejson":32,"parseqs":33,"parseuri":34}],14:[function(_dereq_,module,exports){
        /**
         * Module dependencies.
         */

        var parser = _dereq_('engine.io-parser');
        var Emitter = _dereq_('component-emitter');

        /**
         * Module exports.
         */

        module.exports = Transport;

        /**
         * Transport abstract constructor.
         *
         * @param {Object} options.
         * @api private
         */

        function Transport (opts) {
            this.path = opts.path;
            this.hostname = opts.hostname;
            this.port = opts.port;
            this.secure = opts.secure;
            this.query = opts.query;
            this.timestampParam = opts.timestampParam;
            this.timestampRequests = opts.timestampRequests;
            this.readyState = '';
            this.agent = opts.agent || false;
            this.socket = opts.socket;
            this.enablesXDR = opts.enablesXDR;

            // SSL options for Node.js client
            this.pfx = opts.pfx;
            this.key = opts.key;
            this.passphrase = opts.passphrase;
            this.cert = opts.cert;
            this.ca = opts.ca;
            this.ciphers = opts.ciphers;
            this.rejectUnauthorized = opts.rejectUnauthorized;
        }

        /**
         * Mix in `Emitter`.
         */

        Emitter(Transport.prototype);

        /**
         * A counter used to prevent collisions in the timestamps used
         * for cache busting.
         */

        Transport.timestamps = 0;

        /**
         * Emits an error.
         *
         * @param {String} str
         * @return {Transport} for chaining
         * @api public
         */

        Transport.prototype.onError = function (msg, desc) {
            var err = new Error(msg);
            err.type = 'TransportError';
            err.description = desc;
            this.emit('error', err);
            return this;
        };

        /**
         * Opens the transport.
         *
         * @api public
         */

        Transport.prototype.open = function () {
            if ('closed' == this.readyState || '' == this.readyState) {
                this.readyState = 'opening';
                this.doOpen();
            }

            return this;
        };

        /**
         * Closes the transport.
         *
         * @api private
         */

        Transport.prototype.close = function () {
            if ('opening' == this.readyState || 'open' == this.readyState) {
                this.doClose();
                this.onClose();
            }

            return this;
        };

        /**
         * Sends multiple packets.
         *
         * @param {Array} packets
         * @api private
         */

        Transport.prototype.send = function(packets){
            if ('open' == this.readyState) {
                this.write(packets);
            } else {
                throw new Error('Transport not open');
            }
        };

        /**
         * Called upon open
         *
         * @api private
         */

        Transport.prototype.onOpen = function () {
            this.readyState = 'open';
            this.writable = true;
            this.emit('open');
        };

        /**
         * Called with data.
         *
         * @param {String} data
         * @api private
         */

        Transport.prototype.onData = function(data){
            var packet = parser.decodePacket(data, this.socket.binaryType);
            this.onPacket(packet);
        };

        /**
         * Called with a decoded packet.
         */

        Transport.prototype.onPacket = function (packet) {
            this.emit('packet', packet);
        };

        /**
         * Called upon close.
         *
         * @api private
         */

        Transport.prototype.onClose = function () {
            this.readyState = 'closed';
            this.emit('close');
        };

    },{"component-emitter":9,"engine.io-parser":25}],15:[function(_dereq_,module,exports){
        (function (global){
            /**
             * Module dependencies
             */

            var XMLHttpRequest = _dereq_('xmlhttprequest');
            var XHR = _dereq_('./polling-xhr');
            var JSONP = _dereq_('./polling-jsonp');
            var websocket = _dereq_('./websocket');

            /**
             * Export transports.
             */

            exports.polling = polling;
            exports.websocket = websocket;

            /**
             * Polling transport polymorphic constructor.
             * Decides on xhr vs jsonp based on feature detection.
             *
             * @api private
             */

            function polling(opts){
                var xhr;
                var xd = false;
                var xs = false;
                var jsonp = false !== opts.jsonp;

                if (global.location) {
                    var isSSL = 'https:' == location.protocol;
                    var port = location.port;

                    // some user agents have empty `location.port`
                    if (!port) {
                        port = isSSL ? 443 : 80;
                    }

                    xd = opts.hostname != location.hostname || port != opts.port;
                    xs = opts.secure != isSSL;
                }

                opts.xdomain = xd;
                opts.xscheme = xs;
                xhr = new XMLHttpRequest(opts);

                if ('open' in xhr && !opts.forceJSONP) {
                    return new XHR(opts);
                } else {
                    if (!jsonp) throw new Error('JSONP disabled');
                    return new JSONP(opts);
                }
            }

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"./polling-jsonp":16,"./polling-xhr":17,"./websocket":19,"xmlhttprequest":20}],16:[function(_dereq_,module,exports){
        (function (global){

            /**
             * Module requirements.
             */

            var Polling = _dereq_('./polling');
            var inherit = _dereq_('component-inherit');

            /**
             * Module exports.
             */

            module.exports = JSONPPolling;

            /**
             * Cached regular expressions.
             */

            var rNewline = /\n/g;
            var rEscapedNewline = /\\n/g;

            /**
             * Global JSONP callbacks.
             */

            var callbacks;

            /**
             * Callbacks count.
             */

            var index = 0;

            /**
             * Noop.
             */

            function empty () { }

            /**
             * JSONP Polling constructor.
             *
             * @param {Object} opts.
             * @api public
             */

            function JSONPPolling (opts) {
                Polling.call(this, opts);

                this.query = this.query || {};

                // define global callbacks array if not present
                // we do this here (lazily) to avoid unneeded global pollution
                if (!callbacks) {
                    // we need to consider multiple engines in the same page
                    if (!global.___eio) global.___eio = [];
                    callbacks = global.___eio;
                }

                // callback identifier
                this.index = callbacks.length;

                // add callback to jsonp global
                var self = this;
                callbacks.push(function (msg) {
                    self.onData(msg);
                });

                // append to query string
                this.query.j = this.index;

                // prevent spurious errors from being emitted when the window is unloaded
                if (global.document && global.addEventListener) {
                    global.addEventListener('beforeunload', function () {
                        if (self.script) self.script.onerror = empty;
                    }, false);
                }
            }

            /**
             * Inherits from Polling.
             */

            inherit(JSONPPolling, Polling);

            /*
 * JSONP only supports binary as base64 encoded strings
 */

            JSONPPolling.prototype.supportsBinary = false;

            /**
             * Closes the socket.
             *
             * @api private
             */

            JSONPPolling.prototype.doClose = function () {
                if (this.script) {
                    this.script.parentNode.removeChild(this.script);
                    this.script = null;
                }

                if (this.form) {
                    this.form.parentNode.removeChild(this.form);
                    this.form = null;
                    this.iframe = null;
                }

                Polling.prototype.doClose.call(this);
            };

            /**
             * Starts a poll cycle.
             *
             * @api private
             */

            JSONPPolling.prototype.doPoll = function () {
                var self = this;
                var script = document.createElement('script');

                if (this.script) {
                    this.script.parentNode.removeChild(this.script);
                    this.script = null;
                }

                script.async = true;
                script.src = this.uri();
                script.onerror = function(e){
                    self.onError('jsonp poll error',e);
                };

                var insertAt = document.getElementsByTagName('script')[0];
                insertAt.parentNode.insertBefore(script, insertAt);
                this.script = script;

                var isUAgecko = 'undefined' != typeof navigator && /gecko/i.test(navigator.userAgent);

                if (isUAgecko) {
                    setTimeout(function () {
                        var iframe = document.createElement('iframe');
                        document.body.appendChild(iframe);
                        document.body.removeChild(iframe);
                    }, 100);
                }
            };

            /**
             * Writes with a hidden iframe.
             *
             * @param {String} data to send
             * @param {Function} called upon flush.
             * @api private
             */

            JSONPPolling.prototype.doWrite = function (data, fn) {
                var self = this;

                if (!this.form) {
                    var form = document.createElement('form');
                    var area = document.createElement('textarea');
                    var id = this.iframeId = 'eio_iframe_' + this.index;
                    var iframe;

                    form.className = 'socketio';
                    form.style.position = 'absolute';
                    form.style.top = '-1000px';
                    form.style.left = '-1000px';
                    form.target = id;
                    form.method = 'POST';
                    form.setAttribute('accept-charset', 'utf-8');
                    area.name = 'd';
                    form.appendChild(area);
                    document.body.appendChild(form);

                    this.form = form;
                    this.area = area;
                }

                this.form.action = this.uri();

                function complete () {
                    initIframe();
                    fn();
                }

                function initIframe () {
                    if (self.iframe) {
                        try {
                            self.form.removeChild(self.iframe);
                        } catch (e) {
                            self.onError('jsonp polling iframe removal error', e);
                        }
                    }

                    try {
                        // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
                        var html = '<iframe src="javascript:0" name="'+ self.iframeId +'">';
                        iframe = document.createElement(html);
                    } catch (e) {
                        iframe = document.createElement('iframe');
                        iframe.name = self.iframeId;
                        iframe.src = 'javascript:0';
                    }

                    iframe.id = self.iframeId;

                    self.form.appendChild(iframe);
                    self.iframe = iframe;
                }

                initIframe();

                // escape \n to prevent it from being converted into \r\n by some UAs
                // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
                data = data.replace(rEscapedNewline, '\\\n');
                this.area.value = data.replace(rNewline, '\\n');

                try {
                    this.form.submit();
                } catch(e) {}

                if (this.iframe.attachEvent) {
                    this.iframe.onreadystatechange = function(){
                        if (self.iframe.readyState == 'complete') {
                            complete();
                        }
                    };
                } else {
                    this.iframe.onload = complete;
                }
            };

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"./polling":18,"component-inherit":21}],17:[function(_dereq_,module,exports){
        (function (global){
            /**
             * Module requirements.
             */

            var XMLHttpRequest = _dereq_('xmlhttprequest');
            var Polling = _dereq_('./polling');
            var Emitter = _dereq_('component-emitter');
            var inherit = _dereq_('component-inherit');
            var debug = _dereq_('debug')('engine.io-client:polling-xhr');

            /**
             * Module exports.
             */

            module.exports = XHR;
            module.exports.Request = Request;

            /**
             * Empty function
             */

            function empty(){}

            /**
             * XHR Polling constructor.
             *
             * @param {Object} opts
             * @api public
             */

            function XHR(opts){
                Polling.call(this, opts);

                if (global.location) {
                    var isSSL = 'https:' == location.protocol;
                    var port = location.port;

                    // some user agents have empty `location.port`
                    if (!port) {
                        port = isSSL ? 443 : 80;
                    }

                    this.xd = opts.hostname != global.location.hostname ||
                        port != opts.port;
                    this.xs = opts.secure != isSSL;
                }
            }

            /**
             * Inherits from Polling.
             */

            inherit(XHR, Polling);

            /**
             * XHR supports binary
             */

            XHR.prototype.supportsBinary = true;

            /**
             * Creates a request.
             *
             * @param {String} method
             * @api private
             */

            XHR.prototype.request = function(opts){
                opts = opts || {};
                opts.uri = this.uri();
                opts.xd = this.xd;
                opts.xs = this.xs;
                opts.agent = this.agent || false;
                opts.supportsBinary = this.supportsBinary;
                opts.enablesXDR = this.enablesXDR;

                // SSL options for Node.js client
                opts.pfx = this.pfx;
                opts.key = this.key;
                opts.passphrase = this.passphrase;
                opts.cert = this.cert;
                opts.ca = this.ca;
                opts.ciphers = this.ciphers;
                opts.rejectUnauthorized = this.rejectUnauthorized;

                return new Request(opts);
            };

            /**
             * Sends data.
             *
             * @param {String} data to send.
             * @param {Function} called upon flush.
             * @api private
             */

            XHR.prototype.doWrite = function(data, fn){
                var isBinary = typeof data !== 'string' && data !== undefined;
                var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
                var self = this;
                req.on('success', fn);
                req.on('error', function(err){
                    self.onError('xhr post error', err);
                });
                this.sendXhr = req;
            };

            /**
             * Starts a poll cycle.
             *
             * @api private
             */

            XHR.prototype.doPoll = function(){
                debug('xhr poll');
                var req = this.request();
                var self = this;
                req.on('data', function(data){
                    self.onData(data);
                });
                req.on('error', function(err){
                    self.onError('xhr poll error', err);
                });
                this.pollXhr = req;
            };

            /**
             * Request constructor
             *
             * @param {Object} options
             * @api public
             */

            function Request(opts){
                this.method = opts.method || 'GET';
                this.uri = opts.uri;
                this.xd = !!opts.xd;
                this.xs = !!opts.xs;
                this.async = false !== opts.async;
                this.data = undefined != opts.data ? opts.data : null;
                this.agent = opts.agent;
                this.isBinary = opts.isBinary;
                this.supportsBinary = opts.supportsBinary;
                this.enablesXDR = opts.enablesXDR;

                // SSL options for Node.js client
                this.pfx = opts.pfx;
                this.key = opts.key;
                this.passphrase = opts.passphrase;
                this.cert = opts.cert;
                this.ca = opts.ca;
                this.ciphers = opts.ciphers;
                this.rejectUnauthorized = opts.rejectUnauthorized;

                this.create();
            }

            /**
             * Mix in `Emitter`.
             */

            Emitter(Request.prototype);

            /**
             * Creates the XHR object and sends the request.
             *
             * @api private
             */

            Request.prototype.create = function(){
                var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };

                // SSL options for Node.js client
                opts.pfx = this.pfx;
                opts.key = this.key;
                opts.passphrase = this.passphrase;
                opts.cert = this.cert;
                opts.ca = this.ca;
                opts.ciphers = this.ciphers;
                opts.rejectUnauthorized = this.rejectUnauthorized;

                var xhr = this.xhr = new XMLHttpRequest(opts);
                var self = this;

                try {
                    debug('xhr open %s: %s', this.method, this.uri);
                    xhr.open(this.method, this.uri, this.async);
                    if (this.supportsBinary) {
                        // This has to be done after open because Firefox is stupid
                        // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension
                        xhr.responseType = 'arraybuffer';
                    }

                    if ('POST' == this.method) {
                        try {
                            if (this.isBinary) {
                                xhr.setRequestHeader('Content-type', 'application/octet-stream');
                            } else {
                                xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
                            }
                        } catch (e) {}
                    }

                    // ie6 check
                    if ('withCredentials' in xhr) {
                        xhr.withCredentials = true;
                    }

                    if (this.hasXDR()) {
                        xhr.onload = function(){
                            self.onLoad();
                        };
                        xhr.onerror = function(){
                            self.onError(xhr.responseText);
                        };
                    } else {
                        xhr.onreadystatechange = function(){
                            if (4 != xhr.readyState) return;
                            if (200 == xhr.status || 1223 == xhr.status) {
                                self.onLoad();
                            } else {
                                // make sure the `error` event handler that's user-set
                                // does not throw in the same tick and gets caught here
                                setTimeout(function(){
                                    self.onError(xhr.status);
                                }, 0);
                            }
                        };
                    }

                    debug('xhr data %s', this.data);
                    xhr.send(this.data);
                } catch (e) {
                    // Need to defer since .create() is called directly fhrom the constructor
                    // and thus the 'error' event can only be only bound *after* this exception
                    // occurs.  Therefore, also, we cannot throw here at all.
                    setTimeout(function() {
                        self.onError(e);
                    }, 0);
                    return;
                }

                if (global.document) {
                    this.index = Request.requestsCount++;
                    Request.requests[this.index] = this;
                }
            };

            /**
             * Called upon successful response.
             *
             * @api private
             */

            Request.prototype.onSuccess = function(){
                this.emit('success');
                this.cleanup();
            };

            /**
             * Called if we have data.
             *
             * @api private
             */

            Request.prototype.onData = function(data){
                this.emit('data', data);
                this.onSuccess();
            };

            /**
             * Called upon error.
             *
             * @api private
             */

            Request.prototype.onError = function(err){
                this.emit('error', err);
                this.cleanup(true);
            };

            /**
             * Cleans up house.
             *
             * @api private
             */

            Request.prototype.cleanup = function(fromError){
                if ('undefined' == typeof this.xhr || null === this.xhr) {
                    return;
                }
                // xmlhttprequest
                if (this.hasXDR()) {
                    this.xhr.onload = this.xhr.onerror = empty;
                } else {
                    this.xhr.onreadystatechange = empty;
                }

                if (fromError) {
                    try {
                        this.xhr.abort();
                    } catch(e) {}
                }

                if (global.document) {
                    delete Request.requests[this.index];
                }

                this.xhr = null;
            };

            /**
             * Called upon load.
             *
             * @api private
             */

            Request.prototype.onLoad = function(){
                var data;
                try {
                    var contentType;
                    try {
                        contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];
                    } catch (e) {}
                    if (contentType === 'application/octet-stream') {
                        data = this.xhr.response;
                    } else {
                        if (!this.supportsBinary) {
                            data = this.xhr.responseText;
                        } else {
                            data = 'ok';
                        }
                    }
                } catch (e) {
                    this.onError(e);
                }
                if (null != data) {
                    this.onData(data);
                }
            };

            /**
             * Check if it has XDomainRequest.
             *
             * @api private
             */

            Request.prototype.hasXDR = function(){
                return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;
            };

            /**
             * Aborts the request.
             *
             * @api public
             */

            Request.prototype.abort = function(){
                this.cleanup();
            };

            /**
             * Aborts pending requests when unloading the window. This is needed to prevent
             * memory leaks (e.g. when using IE) and to ensure that no spurious error is
             * emitted.
             */

            if (global.document) {
                Request.requestsCount = 0;
                Request.requests = {};
                if (global.attachEvent) {
                    global.attachEvent('onunload', unloadHandler);
                } else if (global.addEventListener) {
                    global.addEventListener('beforeunload', unloadHandler, false);
                }
            }

            function unloadHandler() {
                for (var i in Request.requests) {
                    if (Request.requests.hasOwnProperty(i)) {
                        Request.requests[i].abort();
                    }
                }
            }

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"./polling":18,"component-emitter":9,"component-inherit":21,"debug":22,"xmlhttprequest":20}],18:[function(_dereq_,module,exports){
        /**
         * Module dependencies.
         */

        var Transport = _dereq_('../transport');
        var parseqs = _dereq_('parseqs');
        var parser = _dereq_('engine.io-parser');
        var inherit = _dereq_('component-inherit');
        var debug = _dereq_('debug')('engine.io-client:polling');

        /**
         * Module exports.
         */

        module.exports = Polling;

        /**
         * Is XHR2 supported?
         */

        var hasXHR2 = (function() {
            var XMLHttpRequest = _dereq_('xmlhttprequest');
            var xhr = new XMLHttpRequest({ xdomain: false });
            return null != xhr.responseType;
        })();

        /**
         * Polling interface.
         *
         * @param {Object} opts
         * @api private
         */

        function Polling(opts){
            var forceBase64 = (opts && opts.forceBase64);
            if (!hasXHR2 || forceBase64) {
                this.supportsBinary = false;
            }
            Transport.call(this, opts);
        }

        /**
         * Inherits from Transport.
         */

        inherit(Polling, Transport);

        /**
         * Transport name.
         */

        Polling.prototype.name = 'polling';

        /**
         * Opens the socket (triggers polling). We write a PING message to determine
         * when the transport is open.
         *
         * @api private
         */

        Polling.prototype.doOpen = function(){
            this.poll();
        };

        /**
         * Pauses polling.
         *
         * @param {Function} callback upon buffers are flushed and transport is paused
         * @api private
         */

        Polling.prototype.pause = function(onPause){
            var pending = 0;
            var self = this;

            this.readyState = 'pausing';

            function pause(){
                debug('paused');
                self.readyState = 'paused';
                onPause();
            }

            if (this.polling || !this.writable) {
                var total = 0;

                if (this.polling) {
                    debug('we are currently polling - waiting to pause');
                    total++;
                    this.once('pollComplete', function(){
                        debug('pre-pause polling complete');
                        --total || pause();
                    });
                }

                if (!this.writable) {
                    debug('we are currently writing - waiting to pause');
                    total++;
                    this.once('drain', function(){
                        debug('pre-pause writing complete');
                        --total || pause();
                    });
                }
            } else {
                pause();
            }
        };

        /**
         * Starts polling cycle.
         *
         * @api public
         */

        Polling.prototype.poll = function(){
            debug('polling');
            this.polling = true;
            this.doPoll();
            this.emit('poll');
        };

        /**
         * Overloads onData to detect payloads.
         *
         * @api private
         */

        Polling.prototype.onData = function(data){
            var self = this;
            debug('polling got data %s', data);
            var callback = function(packet, index, total) {
                // if its the first message we consider the transport open
                if ('opening' == self.readyState) {
                    self.onOpen();
                }

                // if its a close packet, we close the ongoing requests
                if ('close' == packet.type) {
                    self.onClose();
                    return false;
                }

                // otherwise bypass onData and handle the message
                self.onPacket(packet);
            };

            // decode payload
            parser.decodePayload(data, this.socket.binaryType, callback);

            // if an event did not trigger closing
            if ('closed' != this.readyState) {
                // if we got data we're not polling
                this.polling = false;
                this.emit('pollComplete');

                if ('open' == this.readyState) {
                    this.poll();
                } else {
                    debug('ignoring poll - transport state "%s"', this.readyState);
                }
            }
        };

        /**
         * For polling, send a close packet.
         *
         * @api private
         */

        Polling.prototype.doClose = function(){
            var self = this;

            function close(){
                debug('writing close packet');
                self.write([{ type: 'close' }]);
            }

            if ('open' == this.readyState) {
                debug('transport open - closing');
                close();
            } else {
                // in case we're trying to close while
                // handshaking is in progress (GH-164)
                debug('transport not open - deferring close');
                this.once('open', close);
            }
        };

        /**
         * Writes a packets payload.
         *
         * @param {Array} data packets
         * @param {Function} drain callback
         * @api private
         */

        Polling.prototype.write = function(packets){
            var self = this;
            this.writable = false;
            var callbackfn = function() {
                self.writable = true;
                self.emit('drain');
            };

            var self = this;
            parser.encodePayload(packets, this.supportsBinary, function(data) {
                self.doWrite(data, callbackfn);
            });
        };

        /**
         * Generates uri for connection.
         *
         * @api private
         */

        Polling.prototype.uri = function(){
            var query = this.query || {};
            var schema = this.secure ? 'https' : 'http';
            var port = '';

            // cache busting is forced
            if (false !== this.timestampRequests) {
                query[this.timestampParam] = +new Date + '-' + Transport.timestamps++;
            }

            if (!this.supportsBinary && !query.sid) {
                query.b64 = 1;
            }

            query = parseqs.encode(query);

            // avoid port if default for schema
            if (this.port && (('https' == schema && this.port != 443) ||
                ('http' == schema && this.port != 80))) {
                port = ':' + this.port;
            }

            // prepend ? to query
            if (query.length) {
                query = '?' + query;
            }

            return schema + '://' + this.hostname + port + this.path + query;
        };

    },{"../transport":14,"component-inherit":21,"debug":22,"engine.io-parser":25,"parseqs":33,"xmlhttprequest":20}],19:[function(_dereq_,module,exports){
        /**
         * Module dependencies.
         */

        var Transport = _dereq_('../transport');
        var parser = _dereq_('engine.io-parser');
        var parseqs = _dereq_('parseqs');
        var inherit = _dereq_('component-inherit');
        var debug = _dereq_('debug')('engine.io-client:websocket');

        /**
         * `ws` exposes a WebSocket-compatible interface in
         * Node, or the `WebSocket` or `MozWebSocket` globals
         * in the browser.
         */

        var WebSocket = _dereq_('ws');

        /**
         * Module exports.
         */

        module.exports = WS;

        /**
         * WebSocket transport constructor.
         *
         * @api {Object} connection options
         * @api public
         */

        function WS(opts){
            var forceBase64 = (opts && opts.forceBase64);
            if (forceBase64) {
                this.supportsBinary = false;
            }
            Transport.call(this, opts);
        }

        /**
         * Inherits from Transport.
         */

        inherit(WS, Transport);

        /**
         * Transport name.
         *
         * @api public
         */

        WS.prototype.name = 'websocket';

        /*
 * WebSockets support binary
 */

        WS.prototype.supportsBinary = true;

        /**
         * Opens socket.
         *
         * @api private
         */

        WS.prototype.doOpen = function(){
            if (!this.check()) {
                // let probe timeout
                return;
            }

            var self = this;
            var uri = this.uri();
            var protocols = void(0);
            var opts = { agent: this.agent };

            // SSL options for Node.js client
            opts.pfx = this.pfx;
            opts.key = this.key;
            opts.passphrase = this.passphrase;
            opts.cert = this.cert;
            opts.ca = this.ca;
            opts.ciphers = this.ciphers;
            opts.rejectUnauthorized = this.rejectUnauthorized;

            this.ws = new WebSocket(uri, protocols, opts);

            if (this.ws.binaryType === undefined) {
                this.supportsBinary = false;
            }

            this.ws.binaryType = 'arraybuffer';
            this.addEventListeners();
        };

        /**
         * Adds event listeners to the socket
         *
         * @api private
         */

        WS.prototype.addEventListeners = function(){
            var self = this;

            this.ws.onopen = function(){
                self.onOpen();
            };
            this.ws.onclose = function(){
                self.onClose();
            };
            this.ws.onmessage = function(ev){
                self.onData(ev.data);
            };
            this.ws.onerror = function(e){
                self.onError('websocket error', e);
            };
        };

        /**
         * Override `onData` to use a timer on iOS.
         * See: https://gist.github.com/mloughran/2052006
         *
         * @api private
         */

        if ('undefined' != typeof navigator
            && /iPad|iPhone|iPod/i.test(navigator.userAgent)) {
            WS.prototype.onData = function(data){
                var self = this;
                setTimeout(function(){
                    Transport.prototype.onData.call(self, data);
                }, 0);
            };
        }

        /**
         * Writes data to socket.
         *
         * @param {Array} array of packets.
         * @api private
         */

        WS.prototype.write = function(packets){
            var self = this;
            this.writable = false;
            // encodePacket efficient as it uses WS framing
            // no need for encodePayload
            for (var i = 0, l = packets.length; i < l; i++) {
                parser.encodePacket(packets[i], this.supportsBinary, function(data) {
                    //Sometimes the websocket has already been closed but the browser didn't
                    //have a chance of informing us about it yet, in that case send will
                    //throw an error
                    try {
                        self.ws.send(data);
                    } catch (e){
                        debug('websocket closed before onclose event');
                    }
                });
            }

            function ondrain() {
                self.writable = true;
                self.emit('drain');
            }
            // fake drain
            // defer to next tick to allow Socket to clear writeBuffer
            setTimeout(ondrain, 0);
        };

        /**
         * Called upon close
         *
         * @api private
         */

        WS.prototype.onClose = function(){
            Transport.prototype.onClose.call(this);
        };

        /**
         * Closes socket.
         *
         * @api private
         */

        WS.prototype.doClose = function(){
            if (typeof this.ws !== 'undefined') {
                this.ws.close();
            }
        };

        /**
         * Generates uri for connection.
         *
         * @api private
         */

        WS.prototype.uri = function(){
            var query = this.query || {};
            var schema = this.secure ? 'wss' : 'ws';
            var port = '';

            // avoid port if default for schema
            if (this.port && (('wss' == schema && this.port != 443)
                || ('ws' == schema && this.port != 80))) {
                port = ':' + this.port;
            }

            // append timestamp to URI
            if (this.timestampRequests) {
                query[this.timestampParam] = +new Date;
            }

            // communicate binary support capabilities
            if (!this.supportsBinary) {
                query.b64 = 1;
            }

            query = parseqs.encode(query);

            // prepend ? to query
            if (query.length) {
                query = '?' + query;
            }

            return schema + '://' + this.hostname + port + this.path + query;
        };

        /**
         * Feature detection for WebSocket.
         *
         * @return {Boolean} whether this transport is available.
         * @api public
         */

        WS.prototype.check = function(){
            return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
        };

    },{"../transport":14,"component-inherit":21,"debug":22,"engine.io-parser":25,"parseqs":33,"ws":35}],20:[function(_dereq_,module,exports){
// browser shim for xmlhttprequest module
        var hasCORS = _dereq_('has-cors');

        module.exports = function(opts) {
            var xdomain = opts.xdomain;

            // scheme must be same when usign XDomainRequest
            // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
            var xscheme = opts.xscheme;

            // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
            // https://github.com/Automattic/engine.io-client/pull/217
            var enablesXDR = opts.enablesXDR;

            // XMLHttpRequest can be disabled on IE
            try {
                if ('undefined' != typeof XMLHttpRequest && (!xdomain || hasCORS)) {
                    return new XMLHttpRequest();
                }
            } catch (e) { }

            // Use XDomainRequest for IE8 if enablesXDR is true
            // because loading bar keeps flashing when using jsonp-polling
            // https://github.com/yujiosaka/socke.io-ie8-loading-example
            try {
                if ('undefined' != typeof XDomainRequest && !xscheme && enablesXDR) {
                    return new XDomainRequest();
                }
            } catch (e) { }

            if (!xdomain) {
                try {
                    return new ActiveXObject('Microsoft.XMLHTTP');
                } catch(e) { }
            }
        }

    },{"has-cors":38}],21:[function(_dereq_,module,exports){

        module.exports = function(a, b){
            var fn = function(){};
            fn.prototype = b.prototype;
            a.prototype = new fn;
            a.prototype.constructor = a;
        };
    },{}],22:[function(_dereq_,module,exports){

        /**
         * This is the web browser implementation of `debug()`.
         *
         * Expose `debug()` as the module.
         */

        exports = module.exports = _dereq_('./debug');
        exports.log = log;
        exports.formatArgs = formatArgs;
        exports.save = save;
        exports.load = load;
        exports.useColors = useColors;

        /**
         * Colors.
         */

        exports.colors = [
            'lightseagreen',
            'forestgreen',
            'goldenrod',
            'dodgerblue',
            'darkorchid',
            'crimson'
        ];

        /**
         * Currently only WebKit-based Web Inspectors, Firefox >= v31,
         * and the Firebug extension (any Firefox version) are known
         * to support "%c" CSS customizations.
         *
         * TODO: add a `localStorage` variable to explicitly enable/disable colors
         */

        function useColors() {
            // is webkit? http://stackoverflow.com/a/16459606/376773
            return ('WebkitAppearance' in document.documentElement.style) ||
                // is firebug? http://stackoverflow.com/a/398120/376773
                (window.console && (console.firebug || (console.exception && console.table))) ||
                // is firefox >= v31?
                // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
                (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
        }

        /**
         * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
         */

        exports.formatters.j = function(v) {
            return JSON.stringify(v);
        };


        /**
         * Colorize log arguments if enabled.
         *
         * @api public
         */

        function formatArgs() {
            var args = arguments;
            var useColors = this.useColors;

            args[0] = (useColors ? '%c' : '')
                + this.namespace
                + (useColors ? ' %c' : ' ')
                + args[0]
                + (useColors ? '%c ' : ' ')
                + '+' + exports.humanize(this.diff);

            if (!useColors) return args;

            var c = 'color: ' + this.color;
            args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));

            // the final "%c" is somewhat tricky, because there could be other
            // arguments passed either before or after the %c, so we need to
            // figure out the correct index to insert the CSS into
            var index = 0;
            var lastC = 0;
            args[0].replace(/%[a-z%]/g, function(match) {
                if ('%%' === match) return;
                index++;
                if ('%c' === match) {
                    // we only are interested in the *last* %c
                    // (the user may have provided their own)
                    lastC = index;
                }
            });

            args.splice(lastC, 0, c);
            return args;
        }

        /**
         * Invokes `console.log()` when available.
         * No-op when `console.log` is not a "function".
         *
         * @api public
         */

        function log() {
            // This hackery is required for IE8,
            // where the `console.log` function doesn't have 'apply'
            return 'object' == typeof console
                && 'function' == typeof console.log
                && Function.prototype.apply.call(console.log, console, arguments);
        }

        /**
         * Save `namespaces`.
         *
         * @param {String} namespaces
         * @api private
         */

        function save(namespaces) {
            try {
                if (null == namespaces) {
                    localStorage.removeItem('debug');
                } else {
                    localStorage.debug = namespaces;
                }
            } catch(e) {}
        }

        /**
         * Load `namespaces`.
         *
         * @return {String} returns the previously persisted debug modes
         * @api private
         */

        function load() {
            var r;
            try {
                r = localStorage.debug;
            } catch(e) {}
            return r;
        }

        /**
         * Enable namespaces listed in `localStorage.debug` initially.
         */

        exports.enable(load());

    },{"./debug":23}],23:[function(_dereq_,module,exports){

        /**
         * This is the common logic for both the Node.js and web browser
         * implementations of `debug()`.
         *
         * Expose `debug()` as the module.
         */

        exports = module.exports = debug;
        exports.coerce = coerce;
        exports.disable = disable;
        exports.enable = enable;
        exports.enabled = enabled;
        exports.humanize = _dereq_('ms');

        /**
         * The currently active debug mode names, and names to skip.
         */

        exports.names = [];
        exports.skips = [];

        /**
         * Map of special "%n" handling functions, for the debug "format" argument.
         *
         * Valid key names are a single, lowercased letter, i.e. "n".
         */

        exports.formatters = {};

        /**
         * Previously assigned color.
         */

        var prevColor = 0;

        /**
         * Previous log timestamp.
         */

        var prevTime;

        /**
         * Select a color.
         *
         * @return {Number}
         * @api private
         */

        function selectColor() {
            return exports.colors[prevColor++ % exports.colors.length];
        }

        /**
         * Create a debugger with the given `namespace`.
         *
         * @param {String} namespace
         * @return {Function}
         * @api public
         */

        function debug(namespace) {

            // define the `disabled` version
            function disabled() {
            }
            disabled.enabled = false;

            // define the `enabled` version
            function enabled() {

                var self = enabled;

                // set `diff` timestamp
                var curr = +new Date();
                var ms = curr - (prevTime || curr);
                self.diff = ms;
                self.prev = prevTime;
                self.curr = curr;
                prevTime = curr;

                // add the `color` if not set
                if (null == self.useColors) self.useColors = exports.useColors();
                if (null == self.color && self.useColors) self.color = selectColor();

                var args = Array.prototype.slice.call(arguments);

                args[0] = exports.coerce(args[0]);

                if ('string' !== typeof args[0]) {
                    // anything else let's inspect with %o
                    args = ['%o'].concat(args);
                }

                // apply any `formatters` transformations
                var index = 0;
                args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
                    // if we encounter an escaped % then don't increase the array index
                    if (match === '%%') return match;
                    index++;
                    var formatter = exports.formatters[format];
                    if ('function' === typeof formatter) {
                        var val = args[index];
                        match = formatter.call(self, val);

                        // now we need to remove `args[index]` since it's inlined in the `format`
                        args.splice(index, 1);
                        index--;
                    }
                    return match;
                });

                if ('function' === typeof exports.formatArgs) {
                    args = exports.formatArgs.apply(self, args);
                }
                var logFn = enabled.log || exports.log || console.log.bind(console);
                logFn.apply(self, args);
            }
            enabled.enabled = true;

            var fn = exports.enabled(namespace) ? enabled : disabled;

            fn.namespace = namespace;

            return fn;
        }

        /**
         * Enables a debug mode by namespaces. This can include modes
         * separated by a colon and wildcards.
         *
         * @param {String} namespaces
         * @api public
         */

        function enable(namespaces) {
            exports.save(namespaces);

            var split = (namespaces || '').split(/[\s,]+/);
            var len = split.length;

            for (var i = 0; i < len; i++) {
                if (!split[i]) continue; // ignore empty strings
                namespaces = split[i].replace(/\*/g, '.*?');
                if (namespaces[0] === '-') {
                    exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
                } else {
                    exports.names.push(new RegExp('^' + namespaces + '$'));
                }
            }
        }

        /**
         * Disable debug output.
         *
         * @api public
         */

        function disable() {
            exports.enable('');
        }

        /**
         * Returns true if the given mode name is enabled, false otherwise.
         *
         * @param {String} name
         * @return {Boolean}
         * @api public
         */

        function enabled(name) {
            var i, len;
            for (i = 0, len = exports.skips.length; i < len; i++) {
                if (exports.skips[i].test(name)) {
                    return false;
                }
            }
            for (i = 0, len = exports.names.length; i < len; i++) {
                if (exports.names[i].test(name)) {
                    return true;
                }
            }
            return false;
        }

        /**
         * Coerce `val`.
         *
         * @param {Mixed} val
         * @return {Mixed}
         * @api private
         */

        function coerce(val) {
            if (val instanceof Error) return val.stack || val.message;
            return val;
        }

    },{"ms":24}],24:[function(_dereq_,module,exports){
        /**
         * Helpers.
         */

        var s = 1000;
        var m = s * 60;
        var h = m * 60;
        var d = h * 24;
        var y = d * 365.25;

        /**
         * Parse or format the given `val`.
         *
         * Options:
         *
         *  - `long` verbose formatting [false]
         *
         * @param {String|Number} val
         * @param {Object} options
         * @return {String|Number}
         * @api public
         */

        module.exports = function(val, options){
            options = options || {};
            if ('string' == typeof val) return parse(val);
            return options.long
                ? long(val)
                : short(val);
        };

        /**
         * Parse the given `str` and return milliseconds.
         *
         * @param {String} str
         * @return {Number}
         * @api private
         */

        function parse(str) {
            var match = /^((?:\d+)?\.?\d+) *(ms|seconds?|s|minutes?|m|hours?|h|days?|d|years?|y)?$/i.exec(str);
            if (!match) return;
            var n = parseFloat(match[1]);
            var type = (match[2] || 'ms').toLowerCase();
            switch (type) {
                case 'years':
                case 'year':
                case 'y':
                    return n * y;
                case 'days':
                case 'day':
                case 'd':
                    return n * d;
                case 'hours':
                case 'hour':
                case 'h':
                    return n * h;
                case 'minutes':
                case 'minute':
                case 'm':
                    return n * m;
                case 'seconds':
                case 'second':
                case 's':
                    return n * s;
                case 'ms':
                    return n;
            }
        }

        /**
         * Short format for `ms`.
         *
         * @param {Number} ms
         * @return {String}
         * @api private
         */

        function short(ms) {
            if (ms >= d) return Math.round(ms / d) + 'd';
            if (ms >= h) return Math.round(ms / h) + 'h';
            if (ms >= m) return Math.round(ms / m) + 'm';
            if (ms >= s) return Math.round(ms / s) + 's';
            return ms + 'ms';
        }

        /**
         * Long format for `ms`.
         *
         * @param {Number} ms
         * @return {String}
         * @api private
         */

        function long(ms) {
            return plural(ms, d, 'day')
                || plural(ms, h, 'hour')
                || plural(ms, m, 'minute')
                || plural(ms, s, 'second')
                || ms + ' ms';
        }

        /**
         * Pluralization helper.
         */

        function plural(ms, n, name) {
            if (ms < n) return;
            if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name;
            return Math.ceil(ms / n) + ' ' + name + 's';
        }

    },{}],25:[function(_dereq_,module,exports){
        (function (global){
            /**
             * Module dependencies.
             */

            var keys = _dereq_('./keys');
            var hasBinary = _dereq_('has-binary');
            var sliceBuffer = _dereq_('arraybuffer.slice');
            var base64encoder = _dereq_('base64-arraybuffer');
            var after = _dereq_('after');
            var utf8 = _dereq_('utf8');

            /**
             * Check if we are running an android browser. That requires us to use
             * ArrayBuffer with polling transports...
             *
             * http://ghinda.net/jpeg-blob-ajax-android/
             */

            var isAndroid = navigator.userAgent.match(/Android/i);

            /**
             * Check if we are running in PhantomJS.
             * Uploading a Blob with PhantomJS does not work correctly, as reported here:
             * https://github.com/ariya/phantomjs/issues/11395
             * @type boolean
             */
            var isPhantomJS = /PhantomJS/i.test(navigator.userAgent);

            /**
             * When true, avoids using Blobs to encode payloads.
             * @type boolean
             */
            var dontSendBlobs = isAndroid || isPhantomJS;

            /**
             * Current protocol version.
             */

            exports.protocol = 3;

            /**
             * Packet types.
             */

            var packets = exports.packets = {
                open:     0    // non-ws
                , close:    1    // non-ws
                , ping:     2
                , pong:     3
                , message:  4
                , upgrade:  5
                , noop:     6
            };

            var packetslist = keys(packets);

            /**
             * Premade error packet.
             */

            var err = { type: 'error', data: 'parser error' };

            /**
             * Create a blob api even for blob builder when vendor prefixes exist
             */

            var Blob = _dereq_('blob');

            /**
             * Encodes a packet.
             *
             *     <packet type id> [ <data> ]
             *
             * Example:
             *
             *     5hello world
             *     3
             *     4
             *
             * Binary is encoded in an identical principle
             *
             * @api private
             */

            exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
                if ('function' == typeof supportsBinary) {
                    callback = supportsBinary;
                    supportsBinary = false;
                }

                if ('function' == typeof utf8encode) {
                    callback = utf8encode;
                    utf8encode = null;
                }

                var data = (packet.data === undefined)
                    ? undefined
                    : packet.data.buffer || packet.data;

                if (global.ArrayBuffer && data instanceof ArrayBuffer) {
                    return encodeArrayBuffer(packet, supportsBinary, callback);
                } else if (Blob && data instanceof global.Blob) {
                    return encodeBlob(packet, supportsBinary, callback);
                }

                // might be an object with { base64: true, data: dataAsBase64String }
                if (data && data.base64) {
                    return encodeBase64Object(packet, callback);
                }

                // Sending data as a utf-8 string
                var encoded = packets[packet.type];

                // data fragment is optional
                if (undefined !== packet.data) {
                    encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);
                }

                return callback('' + encoded);

            };

            function encodeBase64Object(packet, callback) {
                // packet data is an object { base64: true, data: dataAsBase64String }
                var message = 'b' + exports.packets[packet.type] + packet.data.data;
                return callback(message);
            }

            /**
             * Encode packet helpers for binary types
             */

            function encodeArrayBuffer(packet, supportsBinary, callback) {
                if (!supportsBinary) {
                    return exports.encodeBase64Packet(packet, callback);
                }

                var data = packet.data;
                var contentArray = new Uint8Array(data);
                var resultBuffer = new Uint8Array(1 + data.byteLength);

                resultBuffer[0] = packets[packet.type];
                for (var i = 0; i < contentArray.length; i++) {
                    resultBuffer[i+1] = contentArray[i];
                }

                return callback(resultBuffer.buffer);
            }

            function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
                if (!supportsBinary) {
                    return exports.encodeBase64Packet(packet, callback);
                }

                var fr = new FileReader();
                fr.onload = function() {
                    packet.data = fr.result;
                    exports.encodePacket(packet, supportsBinary, true, callback);
                };
                return fr.readAsArrayBuffer(packet.data);
            }

            function encodeBlob(packet, supportsBinary, callback) {
                if (!supportsBinary) {
                    return exports.encodeBase64Packet(packet, callback);
                }

                if (dontSendBlobs) {
                    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
                }

                var length = new Uint8Array(1);
                length[0] = packets[packet.type];
                var blob = new Blob([length.buffer, packet.data]);

                return callback(blob);
            }

            /**
             * Encodes a packet with binary data in a base64 string
             *
             * @param {Object} packet, has `type` and `data`
             * @return {String} base64 encoded message
             */

            exports.encodeBase64Packet = function(packet, callback) {
                var message = 'b' + exports.packets[packet.type];
                if (Blob && packet.data instanceof Blob) {
                    var fr = new FileReader();
                    fr.onload = function() {
                        var b64 = fr.result.split(',')[1];
                        callback(message + b64);
                    };
                    return fr.readAsDataURL(packet.data);
                }

                var b64data;
                try {
                    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
                } catch (e) {
                    // iPhone Safari doesn't let you apply with typed arrays
                    var typed = new Uint8Array(packet.data);
                    var basic = new Array(typed.length);
                    for (var i = 0; i < typed.length; i++) {
                        basic[i] = typed[i];
                    }
                    b64data = String.fromCharCode.apply(null, basic);
                }
                message += global.btoa(b64data);
                return callback(message);
            };

            /**
             * Decodes a packet. Changes format to Blob if requested.
             *
             * @return {Object} with `type` and `data` (if any)
             * @api private
             */

            exports.decodePacket = function (data, binaryType, utf8decode) {
                // String data
                if (typeof data == 'string' || data === undefined) {
                    if (data.charAt(0) == 'b') {
                        return exports.decodeBase64Packet(data.substr(1), binaryType);
                    }

                    if (utf8decode) {
                        try {
                            data = utf8.decode(data);
                        } catch (e) {
                            return err;
                        }
                    }
                    var type = data.charAt(0);

                    if (Number(type) != type || !packetslist[type]) {
                        return err;
                    }

                    if (data.length > 1) {
                        return { type: packetslist[type], data: data.substring(1) };
                    } else {
                        return { type: packetslist[type] };
                    }
                }

                var asArray = new Uint8Array(data);
                var type = asArray[0];
                var rest = sliceBuffer(data, 1);
                if (Blob && binaryType === 'blob') {
                    rest = new Blob([rest]);
                }
                return { type: packetslist[type], data: rest };
            };

            /**
             * Decodes a packet encoded in a base64 string
             *
             * @param {String} base64 encoded message
             * @return {Object} with `type` and `data` (if any)
             */

            exports.decodeBase64Packet = function(msg, binaryType) {
                var type = packetslist[msg.charAt(0)];
                if (!global.ArrayBuffer) {
                    return { type: type, data: { base64: true, data: msg.substr(1) } };
                }

                var data = base64encoder.decode(msg.substr(1));

                if (binaryType === 'blob' && Blob) {
                    data = new Blob([data]);
                }

                return { type: type, data: data };
            };

            /**
             * Encodes multiple messages (payload).
             *
             *     <length>:data
             *
             * Example:
             *
             *     11:hello world2:hi
             *
             * If any contents are binary, they will be encoded as base64 strings. Base64
             * encoded strings are marked with a b before the length specifier
             *
             * @param {Array} packets
             * @api private
             */

            exports.encodePayload = function (packets, supportsBinary, callback) {
                if (typeof supportsBinary == 'function') {
                    callback = supportsBinary;
                    supportsBinary = null;
                }

                var isBinary = hasBinary(packets);

                if (supportsBinary && isBinary) {
                    if (Blob && !dontSendBlobs) {
                        return exports.encodePayloadAsBlob(packets, callback);
                    }

                    return exports.encodePayloadAsArrayBuffer(packets, callback);
                }

                if (!packets.length) {
                    return callback('0:');
                }

                function setLengthHeader(message) {
                    return message.length + ':' + message;
                }

                function encodeOne(packet, doneCallback) {
                    exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {
                        doneCallback(null, setLengthHeader(message));
                    });
                }

                map(packets, encodeOne, function(err, results) {
                    return callback(results.join(''));
                });
            };

            /**
             * Async array map using after
             */

            function map(ary, each, done) {
                var result = new Array(ary.length);
                var next = after(ary.length, done);

                var eachWithIndex = function(i, el, cb) {
                    each(el, function(error, msg) {
                        result[i] = msg;
                        cb(error, result);
                    });
                };

                for (var i = 0; i < ary.length; i++) {
                    eachWithIndex(i, ary[i], next);
                }
            }

            /*
 * Decodes data when a payload is maybe expected. Possible binary contents are
 * decoded from their base64 representation
 *
 * @param {String} data, callback method
 * @api public
 */

            exports.decodePayload = function (data, binaryType, callback) {
                if (typeof data != 'string') {
                    return exports.decodePayloadAsBinary(data, binaryType, callback);
                }

                if (typeof binaryType === 'function') {
                    callback = binaryType;
                    binaryType = null;
                }

                var packet;
                if (data == '') {
                    // parser error - ignoring payload
                    return callback(err, 0, 1);
                }

                var length = ''
                    , n, msg;

                for (var i = 0, l = data.length; i < l; i++) {
                    var chr = data.charAt(i);

                    if (':' != chr) {
                        length += chr;
                    } else {
                        if ('' == length || (length != (n = Number(length)))) {
                            // parser error - ignoring payload
                            return callback(err, 0, 1);
                        }

                        msg = data.substr(i + 1, n);

                        if (length != msg.length) {
                            // parser error - ignoring payload
                            return callback(err, 0, 1);
                        }

                        if (msg.length) {
                            packet = exports.decodePacket(msg, binaryType, true);

                            if (err.type == packet.type && err.data == packet.data) {
                                // parser error in individual packet - ignoring payload
                                return callback(err, 0, 1);
                            }

                            var ret = callback(packet, i + n, l);
                            if (false === ret) return;
                        }

                        // advance cursor
                        i += n;
                        length = '';
                    }
                }

                if (length != '') {
                    // parser error - ignoring payload
                    return callback(err, 0, 1);
                }

            };

            /**
             * Encodes multiple messages (payload) as binary.
             *
             * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
             * 255><data>
             *
             * Example:
             * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
             *
             * @param {Array} packets
             * @return {ArrayBuffer} encoded payload
             * @api private
             */

            exports.encodePayloadAsArrayBuffer = function(packets, callback) {
                if (!packets.length) {
                    return callback(new ArrayBuffer(0));
                }

                function encodeOne(packet, doneCallback) {
                    exports.encodePacket(packet, true, true, function(data) {
                        return doneCallback(null, data);
                    });
                }

                map(packets, encodeOne, function(err, encodedPackets) {
                    var totalLength = encodedPackets.reduce(function(acc, p) {
                        var len;
                        if (typeof p === 'string'){
                            len = p.length;
                        } else {
                            len = p.byteLength;
                        }
                        return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
                    }, 0);

                    var resultArray = new Uint8Array(totalLength);

                    var bufferIndex = 0;
                    encodedPackets.forEach(function(p) {
                        var isString = typeof p === 'string';
                        var ab = p;
                        if (isString) {
                            var view = new Uint8Array(p.length);
                            for (var i = 0; i < p.length; i++) {
                                view[i] = p.charCodeAt(i);
                            }
                            ab = view.buffer;
                        }

                        if (isString) { // not true binary
                            resultArray[bufferIndex++] = 0;
                        } else { // true binary
                            resultArray[bufferIndex++] = 1;
                        }

                        var lenStr = ab.byteLength.toString();
                        for (var i = 0; i < lenStr.length; i++) {
                            resultArray[bufferIndex++] = parseInt(lenStr[i]);
                        }
                        resultArray[bufferIndex++] = 255;

                        var view = new Uint8Array(ab);
                        for (var i = 0; i < view.length; i++) {
                            resultArray[bufferIndex++] = view[i];
                        }
                    });

                    return callback(resultArray.buffer);
                });
            };

            /**
             * Encode as Blob
             */

            exports.encodePayloadAsBlob = function(packets, callback) {
                function encodeOne(packet, doneCallback) {
                    exports.encodePacket(packet, true, true, function(encoded) {
                        var binaryIdentifier = new Uint8Array(1);
                        binaryIdentifier[0] = 1;
                        if (typeof encoded === 'string') {
                            var view = new Uint8Array(encoded.length);
                            for (var i = 0; i < encoded.length; i++) {
                                view[i] = encoded.charCodeAt(i);
                            }
                            encoded = view.buffer;
                            binaryIdentifier[0] = 0;
                        }

                        var len = (encoded instanceof ArrayBuffer)
                            ? encoded.byteLength
                            : encoded.size;

                        var lenStr = len.toString();
                        var lengthAry = new Uint8Array(lenStr.length + 1);
                        for (var i = 0; i < lenStr.length; i++) {
                            lengthAry[i] = parseInt(lenStr[i]);
                        }
                        lengthAry[lenStr.length] = 255;

                        if (Blob) {
                            var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
                            doneCallback(null, blob);
                        }
                    });
                }

                map(packets, encodeOne, function(err, results) {
                    return callback(new Blob(results));
                });
            };

            /*
 * Decodes data when a payload is maybe expected. Strings are decoded by
 * interpreting each byte as a key code for entries marked to start with 0. See
 * description of encodePayloadAsBinary
 *
 * @param {ArrayBuffer} data, callback method
 * @api public
 */

            exports.decodePayloadAsBinary = function (data, binaryType, callback) {
                if (typeof binaryType === 'function') {
                    callback = binaryType;
                    binaryType = null;
                }

                var bufferTail = data;
                var buffers = [];

                var numberTooLong = false;
                while (bufferTail.byteLength > 0) {
                    var tailArray = new Uint8Array(bufferTail);
                    var isString = tailArray[0] === 0;
                    var msgLength = '';

                    for (var i = 1; ; i++) {
                        if (tailArray[i] == 255) break;

                        if (msgLength.length > 310) {
                            numberTooLong = true;
                            break;
                        }

                        msgLength += tailArray[i];
                    }

                    if(numberTooLong) return callback(err, 0, 1);

                    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
                    msgLength = parseInt(msgLength);

                    var msg = sliceBuffer(bufferTail, 0, msgLength);
                    if (isString) {
                        try {
                            msg = String.fromCharCode.apply(null, new Uint8Array(msg));
                        } catch (e) {
                            // iPhone Safari doesn't let you apply to typed arrays
                            var typed = new Uint8Array(msg);
                            msg = '';
                            for (var i = 0; i < typed.length; i++) {
                                msg += String.fromCharCode(typed[i]);
                            }
                        }
                    }

                    buffers.push(msg);
                    bufferTail = sliceBuffer(bufferTail, msgLength);
                }

                var total = buffers.length;
                buffers.forEach(function(buffer, i) {
                    callback(exports.decodePacket(buffer, binaryType, true), i, total);
                });
            };

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"./keys":26,"after":27,"arraybuffer.slice":28,"base64-arraybuffer":29,"blob":30,"has-binary":36,"utf8":31}],26:[function(_dereq_,module,exports){

        /**
         * Gets the keys for an object.
         *
         * @return {Array} keys
         * @api private
         */

        module.exports = Object.keys || function keys (obj){
            var arr = [];
            var has = Object.prototype.hasOwnProperty;

            for (var i in obj) {
                if (has.call(obj, i)) {
                    arr.push(i);
                }
            }
            return arr;
        };

    },{}],27:[function(_dereq_,module,exports){
        module.exports = after

        function after(count, callback, err_cb) {
            var bail = false
            err_cb = err_cb || noop
            proxy.count = count

            return (count === 0) ? callback() : proxy

            function proxy(err, result) {
                if (proxy.count <= 0) {
                    throw new Error('after called too many times')
                }
                --proxy.count

                // after first error, rest are passed to err_cb
                if (err) {
                    bail = true
                    callback(err)
                    // future error callbacks will go to error handler
                    callback = err_cb
                } else if (proxy.count === 0 && !bail) {
                    callback(null, result)
                }
            }
        }

        function noop() {}

    },{}],28:[function(_dereq_,module,exports){
        /**
         * An abstraction for slicing an arraybuffer even when
         * ArrayBuffer.prototype.slice is not supported
         *
         * @api public
         */

        module.exports = function(arraybuffer, start, end) {
            var bytes = arraybuffer.byteLength;
            start = start || 0;
            end = end || bytes;

            if (arraybuffer.slice) { return arraybuffer.slice(start, end); }

            if (start < 0) { start += bytes; }
            if (end < 0) { end += bytes; }
            if (end > bytes) { end = bytes; }

            if (start >= bytes || start >= end || bytes === 0) {
                return new ArrayBuffer(0);
            }

            var abv = new Uint8Array(arraybuffer);
            var result = new Uint8Array(end - start);
            for (var i = start, ii = 0; i < end; i++, ii++) {
                result[ii] = abv[i];
            }
            return result.buffer;
        };

    },{}],29:[function(_dereq_,module,exports){
        /*
 * base64-arraybuffer
 * https://github.com/niklasvh/base64-arraybuffer
 *
 * Copyright (c) 2012 Niklas von Hertzen
 * Licensed under the MIT license.
 */
        (function(chars){
            "use strict";

            exports.encode = function(arraybuffer) {
                var bytes = new Uint8Array(arraybuffer),
                    i, len = bytes.length, base64 = "";

                for (i = 0; i < len; i+=3) {
                    base64 += chars[bytes[i] >> 2];
                    base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
                    base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
                    base64 += chars[bytes[i + 2] & 63];
                }

                if ((len % 3) === 2) {
                    base64 = base64.substring(0, base64.length - 1) + "=";
                } else if (len % 3 === 1) {
                    base64 = base64.substring(0, base64.length - 2) + "==";
                }

                return base64;
            };

            exports.decode =  function(base64) {
                var bufferLength = base64.length * 0.75,
                    len = base64.length, i, p = 0,
                    encoded1, encoded2, encoded3, encoded4;

                if (base64[base64.length - 1] === "=") {
                    bufferLength--;
                    if (base64[base64.length - 2] === "=") {
                        bufferLength--;
                    }
                }

                var arraybuffer = new ArrayBuffer(bufferLength),
                    bytes = new Uint8Array(arraybuffer);

                for (i = 0; i < len; i+=4) {
                    encoded1 = chars.indexOf(base64[i]);
                    encoded2 = chars.indexOf(base64[i+1]);
                    encoded3 = chars.indexOf(base64[i+2]);
                    encoded4 = chars.indexOf(base64[i+3]);

                    bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
                    bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
                    bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
                }

                return arraybuffer;
            };
        })("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");

    },{}],30:[function(_dereq_,module,exports){
        (function (global){
            /**
             * Create a blob builder even when vendor prefixes exist
             */

            var BlobBuilder = global.BlobBuilder
                || global.WebKitBlobBuilder
                || global.MSBlobBuilder
                || global.MozBlobBuilder;

            /**
             * Check if Blob constructor is supported
             */

            var blobSupported = (function() {
                try {
                    var a = new Blob(['hi']);
                    return a.size === 2;
                } catch(e) {
                    return false;
                }
            })();

            /**
             * Check if Blob constructor supports ArrayBufferViews
             * Fails in Safari 6, so we need to map to ArrayBuffers there.
             */

            var blobSupportsArrayBufferView = blobSupported && (function() {
                try {
                    var b = new Blob([new Uint8Array([1,2])]);
                    return b.size === 2;
                } catch(e) {
                    return false;
                }
            })();

            /**
             * Check if BlobBuilder is supported
             */

            var blobBuilderSupported = BlobBuilder
                && BlobBuilder.prototype.append
                && BlobBuilder.prototype.getBlob;

            /**
             * Helper function that maps ArrayBufferViews to ArrayBuffers
             * Used by BlobBuilder constructor and old browsers that didn't
             * support it in the Blob constructor.
             */

            function mapArrayBufferViews(ary) {
                for (var i = 0; i < ary.length; i++) {
                    var chunk = ary[i];
                    if (chunk.buffer instanceof ArrayBuffer) {
                        var buf = chunk.buffer;

                        // if this is a subarray, make a copy so we only
                        // include the subarray region from the underlying buffer
                        if (chunk.byteLength !== buf.byteLength) {
                            var copy = new Uint8Array(chunk.byteLength);
                            copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
                            buf = copy.buffer;
                        }

                        ary[i] = buf;
                    }
                }
            }

            function BlobBuilderConstructor(ary, options) {
                options = options || {};

                var bb = new BlobBuilder();
                mapArrayBufferViews(ary);

                for (var i = 0; i < ary.length; i++) {
                    bb.append(ary[i]);
                }

                return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
            };

            function BlobConstructor(ary, options) {
                mapArrayBufferViews(ary);
                return new Blob(ary, options || {});
            };

            module.exports = (function() {
                if (blobSupported) {
                    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;
                } else if (blobBuilderSupported) {
                    return BlobBuilderConstructor;
                } else {
                    return undefined;
                }
            })();

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{}],31:[function(_dereq_,module,exports){
        (function (global){
            /*! https://mths.be/utf8js v2.0.0 by @mathias */
            ;(function(root) {

                // Detect free variables `exports`
                var freeExports = typeof exports == 'object' && exports;

                // Detect free variable `module`
                var freeModule = typeof module == 'object' && module &&
                    module.exports == freeExports && module;

                // Detect free variable `global`, from Node.js or Browserified code,
                // and use it as `root`
                var freeGlobal = typeof global == 'object' && global;
                if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
                    root = freeGlobal;
                }

                /*--------------------------------------------------------------------------*/

                var stringFromCharCode = String.fromCharCode;

                // Taken from https://mths.be/punycode
                function ucs2decode(string) {
                    var output = [];
                    var counter = 0;
                    var length = string.length;
                    var value;
                    var extra;
                    while (counter < length) {
                        value = string.charCodeAt(counter++);
                        if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
                            // high surrogate, and there is a next character
                            extra = string.charCodeAt(counter++);
                            if ((extra & 0xFC00) == 0xDC00) { // low surrogate
                                output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
                            } else {
                                // unmatched surrogate; only append this code unit, in case the next
                                // code unit is the high surrogate of a surrogate pair
                                output.push(value);
                                counter--;
                            }
                        } else {
                            output.push(value);
                        }
                    }
                    return output;
                }

                // Taken from https://mths.be/punycode
                function ucs2encode(array) {
                    var length = array.length;
                    var index = -1;
                    var value;
                    var output = '';
                    while (++index < length) {
                        value = array[index];
                        if (value > 0xFFFF) {
                            value -= 0x10000;
                            output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
                            value = 0xDC00 | value & 0x3FF;
                        }
                        output += stringFromCharCode(value);
                    }
                    return output;
                }

                function checkScalarValue(codePoint) {
                    if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
                        throw Error(
                            'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
                            ' is not a scalar value'
                        );
                    }
                }
                /*--------------------------------------------------------------------------*/

                function createByte(codePoint, shift) {
                    return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
                }

                function encodeCodePoint(codePoint) {
                    if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
                        return stringFromCharCode(codePoint);
                    }
                    var symbol = '';
                    if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
                        symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
                    }
                    else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
                        checkScalarValue(codePoint);
                        symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
                        symbol += createByte(codePoint, 6);
                    }
                    else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
                        symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
                        symbol += createByte(codePoint, 12);
                        symbol += createByte(codePoint, 6);
                    }
                    symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
                    return symbol;
                }

                function utf8encode(string) {
                    var codePoints = ucs2decode(string);
                    var length = codePoints.length;
                    var index = -1;
                    var codePoint;
                    var byteString = '';
                    while (++index < length) {
                        codePoint = codePoints[index];
                        byteString += encodeCodePoint(codePoint);
                    }
                    return byteString;
                }

                /*--------------------------------------------------------------------------*/

                function readContinuationByte() {
                    if (byteIndex >= byteCount) {
                        throw Error('Invalid byte index');
                    }

                    var continuationByte = byteArray[byteIndex] & 0xFF;
                    byteIndex++;

                    if ((continuationByte & 0xC0) == 0x80) {
                        return continuationByte & 0x3F;
                    }

                    // If we end up here, itâ€™s not a continuation byte
                    throw Error('Invalid continuation byte');
                }

                function decodeSymbol() {
                    var byte1;
                    var byte2;
                    var byte3;
                    var byte4;
                    var codePoint;

                    if (byteIndex > byteCount) {
                        throw Error('Invalid byte index');
                    }

                    if (byteIndex == byteCount) {
                        return false;
                    }

                    // Read first byte
                    byte1 = byteArray[byteIndex] & 0xFF;
                    byteIndex++;

                    // 1-byte sequence (no continuation bytes)
                    if ((byte1 & 0x80) == 0) {
                        return byte1;
                    }

                    // 2-byte sequence
                    if ((byte1 & 0xE0) == 0xC0) {
                        var byte2 = readContinuationByte();
                        codePoint = ((byte1 & 0x1F) << 6) | byte2;
                        if (codePoint >= 0x80) {
                            return codePoint;
                        } else {
                            throw Error('Invalid continuation byte');
                        }
                    }

                    // 3-byte sequence (may include unpaired surrogates)
                    if ((byte1 & 0xF0) == 0xE0) {
                        byte2 = readContinuationByte();
                        byte3 = readContinuationByte();
                        codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
                        if (codePoint >= 0x0800) {
                            checkScalarValue(codePoint);
                            return codePoint;
                        } else {
                            throw Error('Invalid continuation byte');
                        }
                    }

                    // 4-byte sequence
                    if ((byte1 & 0xF8) == 0xF0) {
                        byte2 = readContinuationByte();
                        byte3 = readContinuationByte();
                        byte4 = readContinuationByte();
                        codePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |
                            (byte3 << 0x06) | byte4;
                        if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
                            return codePoint;
                        }
                    }

                    throw Error('Invalid UTF-8 detected');
                }

                var byteArray;
                var byteCount;
                var byteIndex;
                function utf8decode(byteString) {
                    byteArray = ucs2decode(byteString);
                    byteCount = byteArray.length;
                    byteIndex = 0;
                    var codePoints = [];
                    var tmp;
                    while ((tmp = decodeSymbol()) !== false) {
                        codePoints.push(tmp);
                    }
                    return ucs2encode(codePoints);
                }

                /*--------------------------------------------------------------------------*/

                var utf8 = {
                    'version': '2.0.0',
                    'encode': utf8encode,
                    'decode': utf8decode
                };

                // Some AMD build optimizers, like r.js, check for specific condition patterns
                // like the following:
                if (
                    typeof define == 'function' &&
                    typeof define.amd == 'object' &&
                    define.amd
                ) {
                    define(function() {
                        return utf8;
                    });
                }	else if (freeExports && !freeExports.nodeType) {
                    if (freeModule) { // in Node.js or RingoJS v0.8.0+
                        freeModule.exports = utf8;
                    } else { // in Narwhal or RingoJS v0.7.0-
                        var object = {};
                        var hasOwnProperty = object.hasOwnProperty;
                        for (var key in utf8) {
                            hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]);
                        }
                    }
                } else { // in Rhino or a web browser
                    root.utf8 = utf8;
                }

            }(this));

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{}],32:[function(_dereq_,module,exports){
        (function (global){
            /**
             * JSON parse.
             *
             * @see Based on jQuery#parseJSON (MIT) and JSON2
             * @api private
             */

            var rvalidchars = /^[\],:{}\s]*$/;
            var rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
            var rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;
            var rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g;
            var rtrimLeft = /^\s+/;
            var rtrimRight = /\s+$/;

            module.exports = function parsejson(data) {
                if ('string' != typeof data || !data) {
                    return null;
                }

                data = data.replace(rtrimLeft, '').replace(rtrimRight, '');

                // Attempt to parse using the native JSON parser first
                if (global.JSON && JSON.parse) {
                    return JSON.parse(data);
                }

                if (rvalidchars.test(data.replace(rvalidescape, '@')
                    .replace(rvalidtokens, ']')
                    .replace(rvalidbraces, ''))) {
                    return (new Function('return ' + data))();
                }
            };
        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{}],33:[function(_dereq_,module,exports){
        /**
         * Compiles a querystring
         * Returns string representation of the object
         *
         * @param {Object}
         * @api private
         */

        exports.encode = function (obj) {
            var str = '';

            for (var i in obj) {
                if (obj.hasOwnProperty(i)) {
                    if (str.length) str += '&';
                    str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
                }
            }

            return str;
        };

        /**
         * Parses a simple querystring into an object
         *
         * @param {String} qs
         * @api private
         */

        exports.decode = function(qs){
            var qry = {};
            var pairs = qs.split('&');
            for (var i = 0, l = pairs.length; i < l; i++) {
                var pair = pairs[i].split('=');
                qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
            }
            return qry;
        };

    },{}],34:[function(_dereq_,module,exports){
        /**
         * Parses an URI
         *
         * @author Steven Levithan <stevenlevithan.com> (MIT license)
         * @api private
         */

        var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;

        var parts = [
            'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
        ];

        module.exports = function parseuri(str) {
            var src = str,
                b = str.indexOf('['),
                e = str.indexOf(']');

            if (b != -1 && e != -1) {
                str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
            }

            var m = re.exec(str || ''),
                uri = {},
                i = 14;

            while (i--) {
                uri[parts[i]] = m[i] || '';
            }

            if (b != -1 && e != -1) {
                uri.source = src;
                uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
                uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
                uri.ipv6uri = true;
            }

            return uri;
        };

    },{}],35:[function(_dereq_,module,exports){

        /**
         * Module dependencies.
         */

        var global = (function() { return this; })();

        /**
         * WebSocket constructor.
         */

        var WebSocket = global.WebSocket || global.MozWebSocket;

        /**
         * Module exports.
         */

        module.exports = WebSocket ? ws : null;

        /**
         * WebSocket constructor.
         *
         * The third `opts` options object gets ignored in web browsers, since it's
         * non-standard, and throws a TypeError if passed to the constructor.
         * See: https://github.com/einaros/ws/issues/227
         *
         * @param {String} uri
         * @param {Array} protocols (optional)
         * @param {Object) opts (optional)
         * @api public
         */

        function ws(uri, protocols, opts) {
            var instance;
            if (protocols) {
                instance = new WebSocket(uri, protocols);
            } else {
                instance = new WebSocket(uri);
            }
            return instance;
        }

        if (WebSocket) ws.prototype = WebSocket.prototype;

    },{}],36:[function(_dereq_,module,exports){
        (function (global){

            /*
 * Module requirements.
 */

            var isArray = _dereq_('isarray');

            /**
             * Module exports.
             */

            module.exports = hasBinary;

            /**
             * Checks for binary data.
             *
             * Right now only Buffer and ArrayBuffer are supported..
             *
             * @param {Object} anything
             * @api public
             */

            function hasBinary(data) {

                function _hasBinary(obj) {
                    if (!obj) return false;

                    if ( (global.Buffer && global.Buffer.isBuffer(obj)) ||
                        (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
                        (global.Blob && obj instanceof Blob) ||
                        (global.File && obj instanceof File)
                    ) {
                        return true;
                    }

                    if (isArray(obj)) {
                        for (var i = 0; i < obj.length; i++) {
                            if (_hasBinary(obj[i])) {
                                return true;
                            }
                        }
                    } else if (obj && 'object' == typeof obj) {
                        if (obj.toJSON) {
                            obj = obj.toJSON();
                        }

                        for (var key in obj) {
                            if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
                                return true;
                            }
                        }
                    }

                    return false;
                }

                return _hasBinary(data);
            }

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"isarray":37}],37:[function(_dereq_,module,exports){
        module.exports = Array.isArray || function (arr) {
            return Object.prototype.toString.call(arr) == '[object Array]';
        };

    },{}],38:[function(_dereq_,module,exports){

        /**
         * Module dependencies.
         */

        var global = _dereq_('global');

        /**
         * Module exports.
         *
         * Logic borrowed from Modernizr:
         *
         *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
         */

        try {
            module.exports = 'XMLHttpRequest' in global &&
                'withCredentials' in new global.XMLHttpRequest();
        } catch (err) {
            // if XMLHttp support is disabled in IE then it will throw
            // when trying to create
            module.exports = false;
        }

    },{"global":39}],39:[function(_dereq_,module,exports){

        /**
         * Returns `this`. Execute this without a "context" (i.e. without it being
         * attached to an object of the left-hand side), and `this` points to the
         * "global" scope of the current JS execution.
         */

        module.exports = (function () { return this; })();

    },{}],40:[function(_dereq_,module,exports){

        var indexOf = [].indexOf;

        module.exports = function(arr, obj){
            if (indexOf) return arr.indexOf(obj);
            for (var i = 0; i < arr.length; ++i) {
                if (arr[i] === obj) return i;
            }
            return -1;
        };
    },{}],41:[function(_dereq_,module,exports){

        /**
         * HOP ref.
         */

        var has = Object.prototype.hasOwnProperty;

        /**
         * Return own keys in `obj`.
         *
         * @param {Object} obj
         * @return {Array}
         * @api public
         */

        exports.keys = Object.keys || function(obj){
            var keys = [];
            for (var key in obj) {
                if (has.call(obj, key)) {
                    keys.push(key);
                }
            }
            return keys;
        };

        /**
         * Return own values in `obj`.
         *
         * @param {Object} obj
         * @return {Array}
         * @api public
         */

        exports.values = function(obj){
            var vals = [];
            for (var key in obj) {
                if (has.call(obj, key)) {
                    vals.push(obj[key]);
                }
            }
            return vals;
        };

        /**
         * Merge `b` into `a`.
         *
         * @param {Object} a
         * @param {Object} b
         * @return {Object} a
         * @api public
         */

        exports.merge = function(a, b){
            for (var key in b) {
                if (has.call(b, key)) {
                    a[key] = b[key];
                }
            }
            return a;
        };

        /**
         * Return length of `obj`.
         *
         * @param {Object} obj
         * @return {Number}
         * @api public
         */

        exports.length = function(obj){
            return exports.keys(obj).length;
        };

        /**
         * Check if `obj` is empty.
         *
         * @param {Object} obj
         * @return {Boolean}
         * @api public
         */

        exports.isEmpty = function(obj){
            return 0 == exports.length(obj);
        };
    },{}],42:[function(_dereq_,module,exports){
        /**
         * Parses an URI
         *
         * @author Steven Levithan <stevenlevithan.com> (MIT license)
         * @api private
         */

        var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;

        var parts = [
            'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host'
            , 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
        ];

        module.exports = function parseuri(str) {
            var m = re.exec(str || '')
                , uri = {}
                , i = 14;

            while (i--) {
                uri[parts[i]] = m[i] || '';
            }

            return uri;
        };

    },{}],43:[function(_dereq_,module,exports){
        (function (global){
            /*global Blob,File*/

            /**
             * Module requirements
             */

            var isArray = _dereq_('isarray');
            var isBuf = _dereq_('./is-buffer');

            /**
             * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
             * Anything with blobs or files should be fed through removeBlobs before coming
             * here.
             *
             * @param {Object} packet - socket.io event packet
             * @return {Object} with deconstructed packet and list of buffers
             * @api public
             */

            exports.deconstructPacket = function(packet){
                var buffers = [];
                var packetData = packet.data;

                function _deconstructPacket(data) {
                    if (!data) return data;

                    if (isBuf(data)) {
                        var placeholder = { _placeholder: true, num: buffers.length };
                        buffers.push(data);
                        return placeholder;
                    } else if (isArray(data)) {
                        var newData = new Array(data.length);
                        for (var i = 0; i < data.length; i++) {
                            newData[i] = _deconstructPacket(data[i]);
                        }
                        return newData;
                    } else if ('object' == typeof data && !(data instanceof Date)) {
                        var newData = {};
                        for (var key in data) {
                            newData[key] = _deconstructPacket(data[key]);
                        }
                        return newData;
                    }
                    return data;
                }

                var pack = packet;
                pack.data = _deconstructPacket(packetData);
                pack.attachments = buffers.length; // number of binary 'attachments'
                return {packet: pack, buffers: buffers};
            };

            /**
             * Reconstructs a binary packet from its placeholder packet and buffers
             *
             * @param {Object} packet - event packet with placeholders
             * @param {Array} buffers - binary buffers to put in placeholder positions
             * @return {Object} reconstructed packet
             * @api public
             */

            exports.reconstructPacket = function(packet, buffers) {
                var curPlaceHolder = 0;

                function _reconstructPacket(data) {
                    if (data && data._placeholder) {
                        var buf = buffers[data.num]; // appropriate buffer (should be natural order anyway)
                        return buf;
                    } else if (isArray(data)) {
                        for (var i = 0; i < data.length; i++) {
                            data[i] = _reconstructPacket(data[i]);
                        }
                        return data;
                    } else if (data && 'object' == typeof data) {
                        for (var key in data) {
                            data[key] = _reconstructPacket(data[key]);
                        }
                        return data;
                    }
                    return data;
                }

                packet.data = _reconstructPacket(packet.data);
                packet.attachments = undefined; // no longer useful
                return packet;
            };

            /**
             * Asynchronously removes Blobs or Files from data via
             * FileReader's readAsArrayBuffer method. Used before encoding
             * data as msgpack. Calls callback with the blobless data.
             *
             * @param {Object} data
             * @param {Function} callback
             * @api private
             */

            exports.removeBlobs = function(data, callback) {
                function _removeBlobs(obj, curKey, containingObject) {
                    if (!obj) return obj;

                    // convert any blob
                    if ((global.Blob && obj instanceof Blob) ||
                        (global.File && obj instanceof File)) {
                        pendingBlobs++;

                        // async filereader
                        var fileReader = new FileReader();
                        fileReader.onload = function() { // this.result == arraybuffer
                            if (containingObject) {
                                containingObject[curKey] = this.result;
                            }
                            else {
                                bloblessData = this.result;
                            }

                            // if nothing pending its callback time
                            if(! --pendingBlobs) {
                                callback(bloblessData);
                            }
                        };

                        fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
                    } else if (isArray(obj)) { // handle array
                        for (var i = 0; i < obj.length; i++) {
                            _removeBlobs(obj[i], i, obj);
                        }
                    } else if (obj && 'object' == typeof obj && !isBuf(obj)) { // and object
                        for (var key in obj) {
                            _removeBlobs(obj[key], key, obj);
                        }
                    }
                }

                var pendingBlobs = 0;
                var bloblessData = data;
                _removeBlobs(bloblessData);
                if (!pendingBlobs) {
                    callback(bloblessData);
                }
            };

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{"./is-buffer":45,"isarray":46}],44:[function(_dereq_,module,exports){

        /**
         * Module dependencies.
         */

        var debug = _dereq_('debug')('socket.io-parser');
        var json = _dereq_('json3');
        var isArray = _dereq_('isarray');
        var Emitter = _dereq_('component-emitter');
        var binary = _dereq_('./binary');
        var isBuf = _dereq_('./is-buffer');

        /**
         * Protocol version.
         *
         * @api public
         */

        exports.protocol = 4;

        /**
         * Packet types.
         *
         * @api public
         */

        exports.types = [
            'CONNECT',
            'DISCONNECT',
            'EVENT',
            'BINARY_EVENT',
            'ACK',
            'BINARY_ACK',
            'ERROR'
        ];

        /**
         * Packet type `connect`.
         *
         * @api public
         */

        exports.CONNECT = 0;

        /**
         * Packet type `disconnect`.
         *
         * @api public
         */

        exports.DISCONNECT = 1;

        /**
         * Packet type `event`.
         *
         * @api public
         */

        exports.EVENT = 2;

        /**
         * Packet type `ack`.
         *
         * @api public
         */

        exports.ACK = 3;

        /**
         * Packet type `error`.
         *
         * @api public
         */

        exports.ERROR = 4;

        /**
         * Packet type 'binary event'
         *
         * @api public
         */

        exports.BINARY_EVENT = 5;

        /**
         * Packet type `binary ack`. For acks with binary arguments.
         *
         * @api public
         */

        exports.BINARY_ACK = 6;

        /**
         * Encoder constructor.
         *
         * @api public
         */

        exports.Encoder = Encoder;

        /**
         * Decoder constructor.
         *
         * @api public
         */

        exports.Decoder = Decoder;

        /**
         * A socket.io Encoder instance
         *
         * @api public
         */

        function Encoder() {}

        /**
         * Encode a packet as a single string if non-binary, or as a
         * buffer sequence, depending on packet type.
         *
         * @param {Object} obj - packet object
         * @param {Function} callback - function to handle encodings (likely engine.write)
         * @return Calls callback with Array of encodings
         * @api public
         */

        Encoder.prototype.encode = function(obj, callback){
            debug('encoding packet %j', obj);

            if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
                encodeAsBinary(obj, callback);
            }
            else {
                var encoding = encodeAsString(obj);
                callback([encoding]);
            }
        };

        /**
         * Encode packet as string.
         *
         * @param {Object} packet
         * @return {String} encoded
         * @api private
         */

        function encodeAsString(obj) {
            var str = '';
            var nsp = false;

            // first is type
            str += obj.type;

            // attachments if we have them
            if (exports.BINARY_EVENT == obj.type || exports.BINARY_ACK == obj.type) {
                str += obj.attachments;
                str += '-';
            }

            // if we have a namespace other than `/`
            // we append it followed by a comma `,`
            if (obj.nsp && '/' != obj.nsp) {
                nsp = true;
                str += obj.nsp;
            }

            // immediately followed by the id
            if (null != obj.id) {
                if (nsp) {
                    str += ',';
                    nsp = false;
                }
                str += obj.id;
            }

            // json data
            if (null != obj.data) {
                if (nsp) str += ',';
                str += json.stringify(obj.data);
            }

            debug('encoded %j as %s', obj, str);
            return str;
        }

        /**
         * Encode packet as 'buffer sequence' by removing blobs, and
         * deconstructing packet into object with placeholders and
         * a list of buffers.
         *
         * @param {Object} packet
         * @return {Buffer} encoded
         * @api private
         */

        function encodeAsBinary(obj, callback) {

            function writeEncoding(bloblessData) {
                var deconstruction = binary.deconstructPacket(bloblessData);
                var pack = encodeAsString(deconstruction.packet);
                var buffers = deconstruction.buffers;

                buffers.unshift(pack); // add packet info to beginning of data list
                callback(buffers); // write all the buffers
            }

            binary.removeBlobs(obj, writeEncoding);
        }

        /**
         * A socket.io Decoder instance
         *
         * @return {Object} decoder
         * @api public
         */

        function Decoder() {
            this.reconstructor = null;
        }

        /**
         * Mix in `Emitter` with Decoder.
         */

        Emitter(Decoder.prototype);

        /**
         * Decodes an ecoded packet string into packet JSON.
         *
         * @param {String} obj - encoded packet
         * @return {Object} packet
         * @api public
         */

        Decoder.prototype.add = function(obj) {
            var packet;
            if ('string' == typeof obj) {
                packet = decodeString(obj);
                if (exports.BINARY_EVENT == packet.type || exports.BINARY_ACK == packet.type) { // binary packet's json
                    this.reconstructor = new BinaryReconstructor(packet);

                    // no attachments, labeled binary but no binary data to follow
                    if (this.reconstructor.reconPack.attachments === 0) {
                        this.emit('decoded', packet);
                    }
                } else { // non-binary full packet
                    this.emit('decoded', packet);
                }
            }
            else if (isBuf(obj) || obj.base64) { // raw binary data
                if (!this.reconstructor) {
                    throw new Error('got binary data when not reconstructing a packet');
                } else {
                    packet = this.reconstructor.takeBinaryData(obj);
                    if (packet) { // received final buffer
                        this.reconstructor = null;
                        this.emit('decoded', packet);
                    }
                }
            }
            else {
                throw new Error('Unknown type: ' + obj);
            }
        };

        /**
         * Decode a packet String (JSON data)
         *
         * @param {String} str
         * @return {Object} packet
         * @api private
         */

        function decodeString(str) {
            var p = {};
            var i = 0;

            // look up type
            p.type = Number(str.charAt(0));
            if (null == exports.types[p.type]) return error();

            // look up attachments if type binary
            if (exports.BINARY_EVENT == p.type || exports.BINARY_ACK == p.type) {
                var buf = '';
                while (str.charAt(++i) != '-') {
                    buf += str.charAt(i);
                    if (i == str.length) break;
                }
                if (buf != Number(buf) || str.charAt(i) != '-') {
                    throw new Error('Illegal attachments');
                }
                p.attachments = Number(buf);
            }

            // look up namespace (if any)
            if ('/' == str.charAt(i + 1)) {
                p.nsp = '';
                while (++i) {
                    var c = str.charAt(i);
                    if (',' == c) break;
                    p.nsp += c;
                    if (i == str.length) break;
                }
            } else {
                p.nsp = '/';
            }

            // look up id
            var next = str.charAt(i + 1);
            if ('' !== next && Number(next) == next) {
                p.id = '';
                while (++i) {
                    var c = str.charAt(i);
                    if (null == c || Number(c) != c) {
                        --i;
                        break;
                    }
                    p.id += str.charAt(i);
                    if (i == str.length) break;
                }
                p.id = Number(p.id);
            }

            // look up json data
            if (str.charAt(++i)) {
                try {
                    p.data = json.parse(str.substr(i));
                } catch(e){
                    return error();
                }
            }

            debug('decoded %s as %j', str, p);
            return p;
        }

        /**
         * Deallocates a parser's resources
         *
         * @api public
         */

        Decoder.prototype.destroy = function() {
            if (this.reconstructor) {
                this.reconstructor.finishedReconstruction();
            }
        };

        /**
         * A manager of a binary event's 'buffer sequence'. Should
         * be constructed whenever a packet of type BINARY_EVENT is
         * decoded.
         *
         * @param {Object} packet
         * @return {BinaryReconstructor} initialized reconstructor
         * @api private
         */

        function BinaryReconstructor(packet) {
            this.reconPack = packet;
            this.buffers = [];
        }

        /**
         * Method to be called when binary data received from connection
         * after a BINARY_EVENT packet.
         *
         * @param {Buffer | ArrayBuffer} binData - the raw binary data received
         * @return {null | Object} returns null if more binary data is expected or
         *   a reconstructed packet object if all buffers have been received.
         * @api private
         */

        BinaryReconstructor.prototype.takeBinaryData = function(binData) {
            this.buffers.push(binData);
            if (this.buffers.length == this.reconPack.attachments) { // done with buffer list
                var packet = binary.reconstructPacket(this.reconPack, this.buffers);
                this.finishedReconstruction();
                return packet;
            }
            return null;
        };

        /**
         * Cleans up binary packet reconstruction variables.
         *
         * @api private
         */

        BinaryReconstructor.prototype.finishedReconstruction = function() {
            this.reconPack = null;
            this.buffers = [];
        };

        function error(data){
            return {
                type: exports.ERROR,
                data: 'parser error'
            };
        }

    },{"./binary":43,"./is-buffer":45,"component-emitter":9,"debug":10,"isarray":46,"json3":47}],45:[function(_dereq_,module,exports){
        (function (global){

            module.exports = isBuf;

            /**
             * Returns true if obj is a buffer or an arraybuffer.
             *
             * @api private
             */

            function isBuf(obj) {
                return (global.Buffer && global.Buffer.isBuffer(obj)) ||
                    (global.ArrayBuffer && obj instanceof ArrayBuffer);
            }

        }).call(this,typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
    },{}],46:[function(_dereq_,module,exports){
        module.exports=_dereq_(37)
    },{}],47:[function(_dereq_,module,exports){
        /*! JSON v3.2.6 | http://bestiejs.github.io/json3 | Copyright 2012-2013, Kit Cambridge | http://kit.mit-license.org */
        ;(function (window) {
            // Convenience aliases.
            var getClass = {}.toString, isProperty, forEach, undef;

            // Detect the `define` function exposed by asynchronous module loaders. The
            // strict `define` check is necessary for compatibility with `r.js`.
            var isLoader = typeof define === "function" && define.amd;

            // Detect native implementations.
            var nativeJSON = typeof JSON == "object" && JSON;

            // Set up the JSON 3 namespace, preferring the CommonJS `exports` object if
            // available.
            var JSON3 = typeof exports == "object" && exports && !exports.nodeType && exports;

            if (JSON3 && nativeJSON) {
                // Explicitly delegate to the native `stringify` and `parse`
                // implementations in CommonJS environments.
                JSON3.stringify = nativeJSON.stringify;
                JSON3.parse = nativeJSON.parse;
            } else {
                // Export for web browsers, JavaScript engines, and asynchronous module
                // loaders, using the global `JSON` object if available.
                JSON3 = window.JSON = nativeJSON || {};
            }

            // Test the `Date#getUTC*` methods. Based on work by @Yaffle.
            var isExtended = new Date(-3509827334573292);
            try {
                // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
                // results for certain dates in Opera >= 10.53.
                isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
                    // Safari < 2.0.2 stores the internal millisecond time value correctly,
                    // but clips the values returned by the date methods to the range of
                    // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
                    isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
            } catch (exception) {}

            // Internal: Determines whether the native `JSON.stringify` and `parse`
            // implementations are spec-compliant. Based on work by Ken Snyder.
            function has(name) {
                if (has[name] !== undef) {
                    // Return cached feature test result.
                    return has[name];
                }

                var isSupported;
                if (name == "bug-string-char-index") {
                    // IE <= 7 doesn't support accessing string characters using square
                    // bracket notation. IE 8 only supports this for primitives.
                    isSupported = "a"[0] != "a";
                } else if (name == "json") {
                    // Indicates whether both `JSON.stringify` and `JSON.parse` are
                    // supported.
                    isSupported = has("json-stringify") && has("json-parse");
                } else {
                    var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
                    // Test `JSON.stringify`.
                    if (name == "json-stringify") {
                        var stringify = JSON3.stringify, stringifySupported = typeof stringify == "function" && isExtended;
                        if (stringifySupported) {
                            // A test function object with a custom `toJSON` method.
                            (value = function () {
                                return 1;
                            }).toJSON = value;
                            try {
                                stringifySupported =
                                    // Firefox 3.1b1 and b2 serialize string, number, and boolean
                                    // primitives as object literals.
                                    stringify(0) === "0" &&
                                    // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
                                    // literals.
                                    stringify(new Number()) === "0" &&
                                    stringify(new String()) == '""' &&
                                    // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
                                    // does not define a canonical JSON representation (this applies to
                                    // objects with `toJSON` properties as well, *unless* they are nested
                                    // within an object or array).
                                    stringify(getClass) === undef &&
                                    // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
                                    // FF 3.1b3 pass this test.
                                    stringify(undef) === undef &&
                                    // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
                                    // respectively, if the value is omitted entirely.
                                    stringify() === undef &&
                                    // FF 3.1b1, 2 throw an error if the given value is not a number,
                                    // string, array, object, Boolean, or `null` literal. This applies to
                                    // objects with custom `toJSON` methods as well, unless they are nested
                                    // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
                                    // methods entirely.
                                    stringify(value) === "1" &&
                                    stringify([value]) == "[1]" &&
                                    // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
                                    // `"[null]"`.
                                    stringify([undef]) == "[null]" &&
                                    // YUI 3.0.0b1 fails to serialize `null` literals.
                                    stringify(null) == "null" &&
                                    // FF 3.1b1, 2 halts serialization if an array contains a function:
                                    // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
                                    // elides non-JSON values from objects and arrays, unless they
                                    // define custom `toJSON` methods.
                                    stringify([undef, getClass, null]) == "[null,null,null]" &&
                                    // Simple serialization test. FF 3.1b1 uses Unicode escape sequences
                                    // where character escape codes are expected (e.g., `\b` => `\u0008`).
                                    stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
                                    // FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
                                    stringify(null, value) === "1" &&
                                    stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
                                    // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
                                    // serialize extended years.
                                    stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
                                    // The milliseconds are optional in ES 5, but required in 5.1.
                                    stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
                                    // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
                                    // four-digit years instead of six-digit years. Credits: @Yaffle.
                                    stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
                                    // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
                                    // values less than 1000. Credits: @Yaffle.
                                    stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
                            } catch (exception) {
                                stringifySupported = false;
                            }
                        }
                        isSupported = stringifySupported;
                    }
                    // Test `JSON.parse`.
                    if (name == "json-parse") {
                        var parse = JSON3.parse;
                        if (typeof parse == "function") {
                            try {
                                // FF 3.1b1, b2 will throw an exception if a bare literal is provided.
                                // Conforming implementations should also coerce the initial argument to
                                // a string prior to parsing.
                                if (parse("0") === 0 && !parse(false)) {
                                    // Simple parsing test.
                                    value = parse(serialized);
                                    var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
                                    if (parseSupported) {
                                        try {
                                            // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
                                            parseSupported = !parse('"\t"');
                                        } catch (exception) {}
                                        if (parseSupported) {
                                            try {
                                                // FF 4.0 and 4.0.1 allow leading `+` signs and leading
                                                // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
                                                // certain octal literals.
                                                parseSupported = parse("01") !== 1;
                                            } catch (exception) {}
                                        }
                                        if (parseSupported) {
                                            try {
                                                // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
                                                // points. These environments, along with FF 3.1b1 and 2,
                                                // also allow trailing commas in JSON objects and arrays.
                                                parseSupported = parse("1.") !== 1;
                                            } catch (exception) {}
                                        }
                                    }
                                }
                            } catch (exception) {
                                parseSupported = false;
                            }
                        }
                        isSupported = parseSupported;
                    }
                }
                return has[name] = !!isSupported;
            }

            if (!has("json")) {
                // Common `[[Class]]` name aliases.
                var functionClass = "[object Function]";
                var dateClass = "[object Date]";
                var numberClass = "[object Number]";
                var stringClass = "[object String]";
                var arrayClass = "[object Array]";
                var booleanClass = "[object Boolean]";

                // Detect incomplete support for accessing string characters by index.
                var charIndexBuggy = has("bug-string-char-index");

                // Define additional utility methods if the `Date` methods are buggy.
                if (!isExtended) {
                    var floor = Math.floor;
                    // A mapping between the months of the year and the number of days between
                    // January 1st and the first of the respective month.
                    var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
                    // Internal: Calculates the number of days between the Unix epoch and the
                    // first day of the given month.
                    var getDay = function (year, month) {
                        return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
                    };
                }

                // Internal: Determines if a property is a direct property of the given
                // object. Delegates to the native `Object#hasOwnProperty` method.
                if (!(isProperty = {}.hasOwnProperty)) {
                    isProperty = function (property) {
                        var members = {}, constructor;
                        if ((members.__proto__ = null, members.__proto__ = {
                            // The *proto* property cannot be set multiple times in recent
                            // versions of Firefox and SeaMonkey.
                            "toString": 1
                        }, members).toString != getClass) {
                            // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
                            // supports the mutable *proto* property.
                            isProperty = function (property) {
                                // Capture and break the object's prototype chain (see section 8.6.2
                                // of the ES 5.1 spec). The parenthesized expression prevents an
                                // unsafe transformation by the Closure Compiler.
                                var original = this.__proto__, result = property in (this.__proto__ = null, this);
                                // Restore the original prototype chain.
                                this.__proto__ = original;
                                return result;
                            };
                        } else {
                            // Capture a reference to the top-level `Object` constructor.
                            constructor = members.constructor;
                            // Use the `constructor` property to simulate `Object#hasOwnProperty` in
                            // other environments.
                            isProperty = function (property) {
                                var parent = (this.constructor || constructor).prototype;
                                return property in this && !(property in parent && this[property] === parent[property]);
                            };
                        }
                        members = null;
                        return isProperty.call(this, property);
                    };
                }

                // Internal: A set of primitive types used by `isHostType`.
                var PrimitiveTypes = {
                    'boolean': 1,
                    'number': 1,
                    'string': 1,
                    'undefined': 1
                };

                // Internal: Determines if the given object `property` value is a
                // non-primitive.
                var isHostType = function (object, property) {
                    var type = typeof object[property];
                    return type == 'object' ? !!object[property] : !PrimitiveTypes[type];
                };

                // Internal: Normalizes the `for...in` iteration algorithm across
                // environments. Each enumerated key is yielded to a `callback` function.
                forEach = function (object, callback) {
                    var size = 0, Properties, members, property;

                    // Tests for bugs in the current environment's `for...in` algorithm. The
                    // `valueOf` property inherits the non-enumerable flag from
                    // `Object.prototype` in older versions of IE, Netscape, and Mozilla.
                    (Properties = function () {
                        this.valueOf = 0;
                    }).prototype.valueOf = 0;

                    // Iterate over a new instance of the `Properties` class.
                    members = new Properties();
                    for (property in members) {
                        // Ignore all properties inherited from `Object.prototype`.
                        if (isProperty.call(members, property)) {
                            size++;
                        }
                    }
                    Properties = members = null;

                    // Normalize the iteration algorithm.
                    if (!size) {
                        // A list of non-enumerable properties inherited from `Object.prototype`.
                        members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
                        // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
                        // properties.
                        forEach = function (object, callback) {
                            var isFunction = getClass.call(object) == functionClass, property, length;
                            var hasProperty = !isFunction && typeof object.constructor != 'function' && isHostType(object, 'hasOwnProperty') ? object.hasOwnProperty : isProperty;
                            for (property in object) {
                                // Gecko <= 1.0 enumerates the `prototype` property of functions under
                                // certain conditions; IE does not.
                                if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
                                    callback(property);
                                }
                            }
                            // Manually invoke the callback for each non-enumerable property.
                            for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
                        };
                    } else if (size == 2) {
                        // Safari <= 2.0.4 enumerates shadowed properties twice.
                        forEach = function (object, callback) {
                            // Create a set of iterated properties.
                            var members = {}, isFunction = getClass.call(object) == functionClass, property;
                            for (property in object) {
                                // Store each property name to prevent double enumeration. The
                                // `prototype` property of functions is not enumerated due to cross-
                                // environment inconsistencies.
                                if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
                                    callback(property);
                                }
                            }
                        };
                    } else {
                        // No bugs detected; use the standard `for...in` algorithm.
                        forEach = function (object, callback) {
                            var isFunction = getClass.call(object) == functionClass, property, isConstructor;
                            for (property in object) {
                                if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
                                    callback(property);
                                }
                            }
                            // Manually invoke the callback for the `constructor` property due to
                            // cross-environment inconsistencies.
                            if (isConstructor || isProperty.call(object, (property = "constructor"))) {
                                callback(property);
                            }
                        };
                    }
                    return forEach(object, callback);
                };

                // Public: Serializes a JavaScript `value` as a JSON string. The optional
                // `filter` argument may specify either a function that alters how object and
                // array members are serialized, or an array of strings and numbers that
                // indicates which properties should be serialized. The optional `width`
                // argument may be either a string or number that specifies the indentation
                // level of the output.
                if (!has("json-stringify")) {
                    // Internal: A map of control characters and their escaped equivalents.
                    var Escapes = {
                        92: "\\\\",
                        34: '\\"',
                        8: "\\b",
                        12: "\\f",
                        10: "\\n",
                        13: "\\r",
                        9: "\\t"
                    };

                    // Internal: Converts `value` into a zero-padded string such that its
                    // length is at least equal to `width`. The `width` must be <= 6.
                    var leadingZeroes = "000000";
                    var toPaddedString = function (width, value) {
                        // The `|| 0` expression is necessary to work around a bug in
                        // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
                        return (leadingZeroes + (value || 0)).slice(-width);
                    };

                    // Internal: Double-quotes a string `value`, replacing all ASCII control
                    // characters (characters with code unit values between 0 and 31) with
                    // their escaped equivalents. This is an implementation of the
                    // `Quote(value)` operation defined in ES 5.1 section 15.12.3.
                    var unicodePrefix = "\\u00";
                    var quote = function (value) {
                        var result = '"', index = 0, length = value.length, isLarge = length > 10 && charIndexBuggy, symbols;
                        if (isLarge) {
                            symbols = value.split("");
                        }
                        for (; index < length; index++) {
                            var charCode = value.charCodeAt(index);
                            // If the character is a control character, append its Unicode or
                            // shorthand escape sequence; otherwise, append the character as-is.
                            switch (charCode) {
                                case 8: case 9: case 10: case 12: case 13: case 34: case 92:
                                    result += Escapes[charCode];
                                    break;
                                default:
                                    if (charCode < 32) {
                                        result += unicodePrefix + toPaddedString(2, charCode.toString(16));
                                        break;
                                    }
                                    result += isLarge ? symbols[index] : charIndexBuggy ? value.charAt(index) : value[index];
                            }
                        }
                        return result + '"';
                    };

                    // Internal: Recursively serializes an object. Implements the
                    // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
                    var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
                        var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
                        try {
                            // Necessary for host object support.
                            value = object[property];
                        } catch (exception) {}
                        if (typeof value == "object" && value) {
                            className = getClass.call(value);
                            if (className == dateClass && !isProperty.call(value, "toJSON")) {
                                if (value > -1 / 0 && value < 1 / 0) {
                                    // Dates are serialized according to the `Date#toJSON` method
                                    // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
                                    // for the ISO 8601 date time string format.
                                    if (getDay) {
                                        // Manually compute the year, month, date, hours, minutes,
                                        // seconds, and milliseconds if the `getUTC*` methods are
                                        // buggy. Adapted from @Yaffle's `date-shim` project.
                                        date = floor(value / 864e5);
                                        for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
                                        for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
                                        date = 1 + date - getDay(year, month);
                                        // The `time` value specifies the time within the day (see ES
                                        // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
                                        // to compute `A modulo B`, as the `%` operator does not
                                        // correspond to the `modulo` operation for negative numbers.
                                        time = (value % 864e5 + 864e5) % 864e5;
                                        // The hours, minutes, seconds, and milliseconds are obtained by
                                        // decomposing the time within the day. See section 15.9.1.10.
                                        hours = floor(time / 36e5) % 24;
                                        minutes = floor(time / 6e4) % 60;
                                        seconds = floor(time / 1e3) % 60;
                                        milliseconds = time % 1e3;
                                    } else {
                                        year = value.getUTCFullYear();
                                        month = value.getUTCMonth();
                                        date = value.getUTCDate();
                                        hours = value.getUTCHours();
                                        minutes = value.getUTCMinutes();
                                        seconds = value.getUTCSeconds();
                                        milliseconds = value.getUTCMilliseconds();
                                    }
                                    // Serialize extended years correctly.
                                    value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
                                        "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
                                        // Months, dates, hours, minutes, and seconds should have two
                                        // digits; milliseconds should have three.
                                        "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
                                        // Milliseconds are optional in ES 5.0, but required in 5.1.
                                        "." + toPaddedString(3, milliseconds) + "Z";
                                } else {
                                    value = null;
                                }
                            } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
                                // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
                                // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
                                // ignores all `toJSON` methods on these objects unless they are
                                // defined directly on an instance.
                                value = value.toJSON(property);
                            }
                        }
                        if (callback) {
                            // If a replacement function was provided, call it to obtain the value
                            // for serialization.
                            value = callback.call(object, property, value);
                        }
                        if (value === null) {
                            return "null";
                        }
                        className = getClass.call(value);
                        if (className == booleanClass) {
                            // Booleans are represented literally.
                            return "" + value;
                        } else if (className == numberClass) {
                            // JSON numbers must be finite. `Infinity` and `NaN` are serialized as
                            // `"null"`.
                            return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
                        } else if (className == stringClass) {
                            // Strings are double-quoted and escaped.
                            return quote("" + value);
                        }
                        // Recursively serialize objects and arrays.
                        if (typeof value == "object") {
                            // Check for cyclic structures. This is a linear search; performance
                            // is inversely proportional to the number of unique nested objects.
                            for (length = stack.length; length--;) {
                                if (stack[length] === value) {
                                    // Cyclic structures cannot be serialized by `JSON.stringify`.
                                    throw TypeError();
                                }
                            }
                            // Add the object to the stack of traversed objects.
                            stack.push(value);
                            results = [];
                            // Save the current indentation level and indent one additional level.
                            prefix = indentation;
                            indentation += whitespace;
                            if (className == arrayClass) {
                                // Recursively serialize array elements.
                                for (index = 0, length = value.length; index < length; index++) {
                                    element = serialize(index, value, callback, properties, whitespace, indentation, stack);
                                    results.push(element === undef ? "null" : element);
                                }
                                result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
                            } else {
                                // Recursively serialize object members. Members are selected from
                                // either a user-specified list of property names, or the object
                                // itself.
                                forEach(properties || value, function (property) {
                                    var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
                                    if (element !== undef) {
                                        // According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
                                        // is not the empty string, let `member` {quote(property) + ":"}
                                        // be the concatenation of `member` and the `space` character."
                                        // The "`space` character" refers to the literal space
                                        // character, not the `space` {width} argument provided to
                                        // `JSON.stringify`.
                                        results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
                                    }
                                });
                                result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
                            }
                            // Remove the object from the traversed object stack.
                            stack.pop();
                            return result;
                        }
                    };

                    // Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
                    JSON3.stringify = function (source, filter, width) {
                        var whitespace, callback, properties, className;
                        if (typeof filter == "function" || typeof filter == "object" && filter) {
                            if ((className = getClass.call(filter)) == functionClass) {
                                callback = filter;
                            } else if (className == arrayClass) {
                                // Convert the property names array into a makeshift set.
                                properties = {};
                                for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
                            }
                        }
                        if (width) {
                            if ((className = getClass.call(width)) == numberClass) {
                                // Convert the `width` to an integer and create a string containing
                                // `width` number of space characters.
                                if ((width -= width % 1) > 0) {
                                    for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
                                }
                            } else if (className == stringClass) {
                                whitespace = width.length <= 10 ? width : width.slice(0, 10);
                            }
                        }
                        // Opera <= 7.54u2 discards the values associated with empty string keys
                        // (`""`) only if they are used directly within an object member list
                        // (e.g., `!("" in { "": 1})`).
                        return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
                    };
                }

                // Public: Parses a JSON source string.
                if (!has("json-parse")) {
                    var fromCharCode = String.fromCharCode;

                    // Internal: A map of escaped control characters and their unescaped
                    // equivalents.
                    var Unescapes = {
                        92: "\\",
                        34: '"',
                        47: "/",
                        98: "\b",
                        116: "\t",
                        110: "\n",
                        102: "\f",
                        114: "\r"
                    };

                    // Internal: Stores the parser state.
                    var Index, Source;

                    // Internal: Resets the parser state and throws a `SyntaxError`.
                    var abort = function() {
                        Index = Source = null;
                        throw SyntaxError();
                    };

                    // Internal: Returns the next token, or `"$"` if the parser has reached
                    // the end of the source string. A token may be a string, number, `null`
                    // literal, or Boolean literal.
                    var lex = function () {
                        var source = Source, length = source.length, value, begin, position, isSigned, charCode;
                        while (Index < length) {
                            charCode = source.charCodeAt(Index);
                            switch (charCode) {
                                case 9: case 10: case 13: case 32:
                                    // Skip whitespace tokens, including tabs, carriage returns, line
                                    // feeds, and space characters.
                                    Index++;
                                    break;
                                case 123: case 125: case 91: case 93: case 58: case 44:
                                    // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
                                    // the current position.
                                    value = charIndexBuggy ? source.charAt(Index) : source[Index];
                                    Index++;
                                    return value;
                                case 34:
                                    // `"` delimits a JSON string; advance to the next character and
                                    // begin parsing the string. String tokens are prefixed with the
                                    // sentinel `@` character to distinguish them from punctuators and
                                    // end-of-string tokens.
                                    for (value = "@", Index++; Index < length;) {
                                        charCode = source.charCodeAt(Index);
                                        if (charCode < 32) {
                                            // Unescaped ASCII control characters (those with a code unit
                                            // less than the space character) are not permitted.
                                            abort();
                                        } else if (charCode == 92) {
                                            // A reverse solidus (`\`) marks the beginning of an escaped
                                            // control character (including `"`, `\`, and `/`) or Unicode
                                            // escape sequence.
                                            charCode = source.charCodeAt(++Index);
                                            switch (charCode) {
                                                case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
                                                    // Revive escaped control characters.
                                                    value += Unescapes[charCode];
                                                    Index++;
                                                    break;
                                                case 117:
                                                    // `\u` marks the beginning of a Unicode escape sequence.
                                                    // Advance to the first character and validate the
                                                    // four-digit code point.
                                                    begin = ++Index;
                                                    for (position = Index + 4; Index < position; Index++) {
                                                        charCode = source.charCodeAt(Index);
                                                        // A valid sequence comprises four hexdigits (case-
                                                        // insensitive) that form a single hexadecimal value.
                                                        if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
                                                            // Invalid Unicode escape sequence.
                                                            abort();
                                                        }
                                                    }
                                                    // Revive the escaped character.
                                                    value += fromCharCode("0x" + source.slice(begin, Index));
                                                    break;
                                                default:
                                                    // Invalid escape sequence.
                                                    abort();
                                            }
                                        } else {
                                            if (charCode == 34) {
                                                // An unescaped double-quote character marks the end of the
                                                // string.
                                                break;
                                            }
                                            charCode = source.charCodeAt(Index);
                                            begin = Index;
                                            // Optimize for the common case where a string is valid.
                                            while (charCode >= 32 && charCode != 92 && charCode != 34) {
                                                charCode = source.charCodeAt(++Index);
                                            }
                                            // Append the string as-is.
                                            value += source.slice(begin, Index);
                                        }
                                    }
                                    if (source.charCodeAt(Index) == 34) {
                                        // Advance to the next character and return the revived string.
                                        Index++;
                                        return value;
                                    }
                                    // Unterminated string.
                                    abort();
                                default:
                                    // Parse numbers and literals.
                                    begin = Index;
                                    // Advance past the negative sign, if one is specified.
                                    if (charCode == 45) {
                                        isSigned = true;
                                        charCode = source.charCodeAt(++Index);
                                    }
                                    // Parse an integer or floating-point value.
                                    if (charCode >= 48 && charCode <= 57) {
                                        // Leading zeroes are interpreted as octal literals.
                                        if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
                                            // Illegal octal literal.
                                            abort();
                                        }
                                        isSigned = false;
                                        // Parse the integer component.
                                        for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
                                        // Floats cannot contain a leading decimal point; however, this
                                        // case is already accounted for by the parser.
                                        if (source.charCodeAt(Index) == 46) {
                                            position = ++Index;
                                            // Parse the decimal component.
                                            for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
                                            if (position == Index) {
                                                // Illegal trailing decimal.
                                                abort();
                                            }
                                            Index = position;
                                        }
                                        // Parse exponents. The `e` denoting the exponent is
                                        // case-insensitive.
                                        charCode = source.charCodeAt(Index);
                                        if (charCode == 101 || charCode == 69) {
                                            charCode = source.charCodeAt(++Index);
                                            // Skip past the sign following the exponent, if one is
                                            // specified.
                                            if (charCode == 43 || charCode == 45) {
                                                Index++;
                                            }
                                            // Parse the exponential component.
                                            for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
                                            if (position == Index) {
                                                // Illegal empty exponent.
                                                abort();
                                            }
                                            Index = position;
                                        }
                                        // Coerce the parsed value to a JavaScript number.
                                        return +source.slice(begin, Index);
                                    }
                                    // A negative sign may only precede numbers.
                                    if (isSigned) {
                                        abort();
                                    }
                                    // `true`, `false`, and `null` literals.
                                    if (source.slice(Index, Index + 4) == "true") {
                                        Index += 4;
                                        return true;
                                    } else if (source.slice(Index, Index + 5) == "false") {
                                        Index += 5;
                                        return false;
                                    } else if (source.slice(Index, Index + 4) == "null") {
                                        Index += 4;
                                        return null;
                                    }
                                    // Unrecognized token.
                                    abort();
                            }
                        }
                        // Return the sentinel `$` character if the parser has reached the end
                        // of the source string.
                        return "$";
                    };

                    // Internal: Parses a JSON `value` token.
                    var get = function (value) {
                        var results, hasMembers;
                        if (value == "$") {
                            // Unexpected end of input.
                            abort();
                        }
                        if (typeof value == "string") {
                            if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
                                // Remove the sentinel `@` character.
                                return value.slice(1);
                            }
                            // Parse object and array literals.
                            if (value == "[") {
                                // Parses a JSON array, returning a new JavaScript array.
                                results = [];
                                for (;; hasMembers || (hasMembers = true)) {
                                    value = lex();
                                    // A closing square bracket marks the end of the array literal.
                                    if (value == "]") {
                                        break;
                                    }
                                    // If the array literal contains elements, the current token
                                    // should be a comma separating the previous element from the
                                    // next.
                                    if (hasMembers) {
                                        if (value == ",") {
                                            value = lex();
                                            if (value == "]") {
                                                // Unexpected trailing `,` in array literal.
                                                abort();
                                            }
                                        } else {
                                            // A `,` must separate each array element.
                                            abort();
                                        }
                                    }
                                    // Elisions and leading commas are not permitted.
                                    if (value == ",") {
                                        abort();
                                    }
                                    results.push(get(value));
                                }
                                return results;
                            } else if (value == "{") {
                                // Parses a JSON object, returning a new JavaScript object.
                                results = {};
                                for (;; hasMembers || (hasMembers = true)) {
                                    value = lex();
                                    // A closing curly brace marks the end of the object literal.
                                    if (value == "}") {
                                        break;
                                    }
                                    // If the object literal contains members, the current token
                                    // should be a comma separator.
                                    if (hasMembers) {
                                        if (value == ",") {
                                            value = lex();
                                            if (value == "}") {
                                                // Unexpected trailing `,` in object literal.
                                                abort();
                                            }
                                        } else {
                                            // A `,` must separate each object member.
                                            abort();
                                        }
                                    }
                                    // Leading commas are not permitted, object property names must be
                                    // double-quoted strings, and a `:` must separate each property
                                    // name and value.
                                    if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
                                        abort();
                                    }
                                    results[value.slice(1)] = get(lex());
                                }
                                return results;
                            }
                            // Unexpected token encountered.
                            abort();
                        }
                        return value;
                    };

                    // Internal: Updates a traversed object member.
                    var update = function(source, property, callback) {
                        var element = walk(source, property, callback);
                        if (element === undef) {
                            delete source[property];
                        } else {
                            source[property] = element;
                        }
                    };

                    // Internal: Recursively traverses a parsed JSON object, invoking the
                    // `callback` function for each value. This is an implementation of the
                    // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
                    var walk = function (source, property, callback) {
                        var value = source[property], length;
                        if (typeof value == "object" && value) {
                            // `forEach` can't be used to traverse an array in Opera <= 8.54
                            // because its `Object#hasOwnProperty` implementation returns `false`
                            // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
                            if (getClass.call(value) == arrayClass) {
                                for (length = value.length; length--;) {
                                    update(value, length, callback);
                                }
                            } else {
                                forEach(value, function (property) {
                                    update(value, property, callback);
                                });
                            }
                        }
                        return callback.call(source, property, value);
                    };

                    // Public: `JSON.parse`. See ES 5.1 section 15.12.2.
                    JSON3.parse = function (source, callback) {
                        var result, value;
                        Index = 0;
                        Source = "" + source;
                        result = get(lex());
                        // If a JSON string contains multiple tokens, it is invalid.
                        if (lex() != "$") {
                            abort();
                        }
                        // Reset the parser state.
                        Index = Source = null;
                        return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
                    };
                }
            }

            // Export for asynchronous module loaders.
            if (isLoader) {
                define(function () {
                    return JSON3;
                });
            }
        }(this));

    },{}],48:[function(_dereq_,module,exports){
        module.exports = toArray

        function toArray(list, index) {
            var array = []

            index = index || 0

            for (var i = index || 0; i < list.length; i++) {
                array[i - index] = list[i]
            }

            return array
        }

    },{}]},{},[1])
(1)
});